After 5 years together, and over a year of engagement, American pop singer Lady Gaga and fiancé, actor Taylor Kinney have split up.

Lady Gaga has been spotted without her engagement ring for a while, notably on Kinney's 35th birthday when she was out and about Malibu.

There is no word yet on who called it quits as neither party is yet to release a statement on the break-up.

Taylor Kinney proposed to the "Bad Romance" singer last Valentine with a heart-shaped engagement ring designed by famed designer, Lorraine Schwartz and it bore the couple's initials.