Miley Cyrus seemed to take a swipe at her ex-fiance Liam Hemsworth during a raucous gig in London on Friday.
The US pop star revealed she wrote her hit Wrecking Ball to seek out revenge on a former partner.
Cyrus took to the stage for a top secret show at G-A-Y in the UK capital, and caused a stir as she cavorted with a giant inflatable penis in front of fans.
But she got serious later on in the concert when she spoke about how she penned Wrecking Ball after having her heart broken, sparking speculation she was talking about the Australian actor, who she split from last year.
"I wrote this song after somebody broke my heart, and I just wanted to say 'f*** you'. I wanted to write a number one hit, something that would be on the radio. I wanted to make sure every time he turned on his radio, he would hear my song and will keep hearing it for the rest of his life."
The pair got engaged in 2012 after meeting on the set of The Last Song in 2009. They announced the end of their engagement on September 16, 2013.
Cyrus also took the opportunity to air her views on sexuality during the G-A-Y concert, telling fans, "You know, everyone's a little bit gay. Some of us just a little bit more than others. You know, it's the truth. Everyone's gay."