Beyoncé and Jay Z are officially a billion-dollar couple after Forbes put their combined worth at $1.16 billion (£890 million) this week.

The entertainment tycoons not only earn millions from music and tours, but they also rake in cash from numerous side companies and business ventures.

They have risen to become one of the world's top power couples, but what do they do with all that cash?

From properties all over the world to private jets and jewellery collections, we did some digging into how they make it rain.

Scroll down for a look at how Beyoncé and Jay Z make and spend their billions.

According to Forbes list of America's Richest Self-Made Women, released on Wednesday, 35-year-old Beyonce Knowles is worth $350 (£270) million.

Source: Forbes.

Her Formation World Tour alone grossed a quarter of a billion dollars.

Meanwhile, a recent Forbes ranking of The Richest in Hop Hop of 2017 revealed that Jay Z's fortune has jumped 30% in the past year to $810 million (£625 million), putting the couple's combined net worth at $1.16 billion (£890 million).

Source: Forbes.

Firstly, a look at how they make their money. Together, the Knowles-Carters hold "significant equity" in music streaming service Tidal.

($56 million (£43 million))

Just last week, Jay Z signed a new 10-year, $200 million (£154 million) deal with Live Nation.

However, according to Forbes, most of the Jay Z's wealth comes form his entertainment company, Roc Nation.

In February, Jay Z announced plans to launch his own venture-capital firm along with Roc Nation President Jay Brown. The "startup platform" called Arrive will reportedly invest in early-stage startups and help those companies build their brands.

And that Champagne they were drinking? It's Jay Z's own Armand de Brignac brand, which also makes him money.

He also backs private jet startup Jetsmarter, an app that aims to make booking a private jet — or a seat on one — as easy as booking an Uber.

He has also invested in a number of other companies, including French speaker company Devialet.

Beyonce has a line of gym wear called Ivy Park, a joint venture with Topshop.

A report by The Sun on Sunday said that

In 2015, she also set up an on-demand vegan meal delivery service called 22 Days Nutrition.

Launched along with her trainer Marco Borges, it comes from the belief that it takes 21 days to break a bad habit.

Needless to say, they have a lot of money. But they don't just spend it on themselves — the couple are preparing to welcome twins to their family this summer. They already have a five-year-old daughter, Blue Ivy.

The couple had Blue Ivy in the exclusive $1,700 (£1,305) a night birthing suite at Lenox Hill, which they decked out with four big-screen televisions and room service.

Source: Hello! Magazine.

For Blue Ivy's first birthday, they reportedly gave her a diamond-encrusted Barbie doll worth $80,000 (£50,000).

According to The Daily Mail, in 2013 they threw her a princess-themed birthday party in New York. It featured £60,000 worth of white and pink roses, a £1,500 cake, £20,000 of accessories and toys including jewellery sets, princess costumes, and playhouses, as well as "luxury goodie bags with personalised gold pens with Blue Ivy's name engraved on them.

She even wore a gown worth $11,000 (£8,443) to the VMAs last year.

According to The Hollywood Reporter, her Mischka Aoki Grand Royalle' dress cost $10,950 (£8,404). It had a gold leatherette bodice, a high-low hem and 3D floral appliques. It is available at Bergdorf Goodman.

According to OK! Magazine, the couple splashed out nearly £65,000 on matching gold cribs for their unborn twins. They also reportedly spent another £68,000 on a diamond-encrusted gold dummy.

The 18 carat gold Dodo Bassinet costs are worth approximately £32,380 each.

However, they certainly manage to spend on themselves, too. In April, it was reported that they were close to buying a £94 million mega-mansion in LA.

According to The Sun, the 30,000 sq ft Bel Air mansion is complete with 15-car garage, servants’ quarters, 8 bedrooms, 11 bathrooms and bulletproof windows.

In 2014, they nearly bought this $70 million (£54 million) LA mansion but were outbid by the creator of Minecraft.

The couple had reportedly visited the property six times.

Whichever house this is at, it looks pretty nice.

In 2015, rumour also had it that the couple purchased a converted church in the Garden District of New Orleans for $2.6 million (£2 million).

First built in 1925 as a Presbyterian church, the 13,292-square-foot space was then converted into a ballet school before being converted to a single-family home with three 1,000-square-foot apartments.

According to Hello! Magazine, Jay Z also purchased a $4 million (£3.1 million) private island in the Bahamas.

Source: Hello! Magazine

Despite all their properties, they spend a lot of time away from home. They regularly stay at a $1 million (£767,000) per month mansion in the Hamptons.

Sandcastle Estate in Bridgehampton, New York — which has 31,000 square feet, a movie theater, bowling alley, walk-in refrigerator, wine room, climbing wall, basketball court, private gym, and spa — is listed for rental at a cost of $1 million (£767,000) a month, or $500,000 (£384,000) for a shorter term. Jay Z and Beyonce reportedly paid $400,000 (£307,000) to stay in the house for a month in 2012.

They are regular visitors to the Dominican Republic, and have stayed at the $19.5 million (£15 million) 35,000-square-foot Casa de Campo Real Estate.

Source: Business Insider.

They also travel to Paris regularly, and stay in a $20,000 (£15,350) a night penthouse at Hotel Le Meurice.

Source: Hello! Magazine.

They travel in style, too. In 2015, the couple took a holiday on the Galactica Star, an ultra-luxury £50 million yacht reportedly owned by Nigerian energy magnate Kola Aluko.

The Galactica Star can sleep up to 12 guests with a full-beam master suite, an upper-deck VIP cabin, and four further double cabins. Beyond this, there is a "beach club" with a 10-square-metre balcony, tons of space to entertain guests, and a helipad.

Despite reports that the yacht costs $900,000 a week (£580,000) to charter, it's actually far more exclusive: To stay on the yacht, you also have to know the owner.

Jay Z once gave Beyonce a $1 million (£767,500) 1959 Rolls Royce, something like the below, for her birthday.

She also returned the favour by giving him a $2 million (£1,535,000) Buggati Veyron Grand for his 41st.

Oh, and a $40 million (£30.7 million) Bombardier Challenger 850 private jet.

It has its own kitchen, living room, and two bathrooms, according to The Telegraph.

Maybe that was what she was flying when she landed at the Brits in 2014.

According to Hello! Magazine, Beyoncé drives around in a custom $1 million (£767,500) Mercedes van — similar to the one below — with its own washroom and a $150,000 (£115,125) sound system.

Source: Hello! Magazine.

Daily life is pretty expensive, too. Jay Z pays a personal barber who is available at all times. He flies around the world to look after the star.

Source: Hello! Magazine.

Meanwhile, Beyonce wears $60 (£46) mink eyelashes, and throws them out after every use — that's $21,000 (£16,118) a year, if she uses them daily.

Source: Hello! Magazine.

They are reportedly clients of Jacob the Jeweler, the man selling the wildest watches and jewellery to the elite. Pieces range from about $200,000 (£153,500) to about $1 million (£767,500).

Source: Business Insider.

Jay Z reportedly owns a $2,100 (£1,611) rosary, a $14,000 (£10,745) Cartier panther ring, and an 11-pound, $250,000 (£191,875) solid gold chain necklace.

Source: Hello! Magazine.

After the birth of Blue Ivy, Jay Z reportedly gave Beyonce a $35,000 (£26,862) blue sapphire ring. Beyonce gave her husband a $500,000 (£383,750) sapphire ring back.

Basically, they have a bunch of expensive rings.

Source: Hello! Magazine

They spend a lot of money on drinks and nightclubs.

The bill for Jay-Z’s "Watch The Throne" listening party at Liv nightclub was reportedly $250,000 (£192,000). In 2013, the couple also reportedly spent almost $100,000 (£76,800) on drinks for VIP guests at an Atlanta nightclub.

They also eat at the best restaurants. The couple were known to dine at Le Cirque, one of New York's most prestigious restaurants. It is known for inventing the crème brûlée and spaghetti primavera.

Source: Business Insider.

This is only a sample of the ways they manage to spend their billions. As they get ready to expand their family from three to five, it's certain their elaborate money-spending ways have only just begun.