Lady Gaga didn't hold back as she shed light on her duet with controversial musician ... which largely saw her poking fun at herself. The singer was also the show's musical guest to promote ...

Lady Gaga pushed back against ... Los Angeles on Monday night, the singer-songwriter won Best Collaboration for Die with a Smile, her duet with Bruno Mars. Gaga, real name Stefani Germanotta ...

Gaga ended up collaborating on Bennett's Duets II album that same year, singing the classic, "The Lady Is a Tramp." With the "Poker Face" singer in the mix, the cover was brimming with chemistry ...

During the iHeartRadio Music Awards on Monday night, the singer-songwriter won Best Collaboration for Die with a Smile, her duet with Bruno Mars. Gaga, real name Stefani Germanotta, was also presented ...