If you think that the Lady Gaga versus Katy Perry wars are over, well, think again because our Main Pop Girls are back in the game—music-wise and fandom wars-wise!

Bryan Gaw, famously known as 'Left Shark' in Katy Perry's 2015 Super Bowl halftime show, opens up to PEOPLE exclusively about his viral routine one decade later ...

Lady Gaga, Katy Perry and More Must-See Performances ET highlights all the biggest moments and performances from the FireAid benefit concert, which raised over $60 million for LA fire relief efforts.

Fresh off the FireAid stage, Lady Gaga is gearing back up to grace the Grammy stage alongside Bruno Mars to perform a tribute to Los Angeles during Sunday night’s event. Rumors had been ...

On the bill were names anybody would jump at the opportunity to see live, including Stevie Nicks, Joni Mitchell, Graham Nash, Billie Eilish, Lady Gaga, Katy Perry, No Doubt, Pink, and more. From the ...

Katy Perry performed California Girls to the packed out crowd. Grohl reunited with Nirvana for a special performance. It was a pop lover’s dream at the Intuit Dome in Inglewood, with Lady Gaga ...