Katy Perry and her team were recently seen dancing to Lady Gaga's debut single, Just Dance. They danced backstage to the song ...

Katy Perry and Lady Gaga continue to find themselves guest starring in Kesha and Dr. Luke‘s ongoing legal battle, but the saga took a gossipy turn this week. Unsealed court documents show a text ...

Katy Perry, who recently attended Lady Gaga‘s concert at Estadio GNP Seguros in Mexico City, showered praise on Lady Gaga for her electrifying Viva la Mayhem performance. Accordingly, fans are ...

Katy Perry joined in on the Viva La Mayhem fun! On Monday, April 28, the "Teenage Dream" singer shared pictures and videos from Lady Gaga 's Sunday night concert in Mexico City at Estadio GNP Seguros.

Gaga played "God Bless America" at the series of get-out-the-vote rallies that also featured Oprah Winfrey, Jon Bon Jovi, Ricky Martin and others before today's (Nov. 5) pivotal election.

Probably that, yes. See the Katy Perry-endorsed stan tweet below. 30 Things You Maybe Didn't Know About Lady Gaga: ...

Perry found comfort in Lady Gaga after Hilary Clinton's loss: “It was a revelation, it was a reckoning,” she said of Mrs. Clinton’s loss.

Lady Gaga, Katy Perry, the Roots, Jazmine Sullivan, and more will take part in Kamala Harris election-eve rallies in Pennsylvania, the Harris-Walz campaign announced Sunday.

Those who signed support background checks. — -- More than 150 entertainers and executives, including Katy Perry, Lady Gaga and Billy Joel, have signed a special “Open Letter to Congress ...

Lady Gaga ‘s ARTPOP album is due Nov. 11 on UMG’s Interscope label, three weeks after Katy Perry ‘s Prism is released Oct. 22 via UMG’s Capitol Music Group.