Katy Perry believes 'every female artist' owes a debt of gratitude to Madonna

Katy Perry wants female artists to stop being pitted against one another

Madonna pays tribute to the 'troublesome' artists at Grammy Awards

Travis Kelce loves watching 'Gossip Girl'

Madonna Hits Back At Grammys Criticism!

Robbie Williams recruits Black Sabbath's Tony Iommi for rock song

Katy Perry joins Madonna Onstage and Shake her Butt with her!

The Foo Fighters have cancelled a show after Dave Grohl recently revealed that he welcomed a baby outside of his marriage

Lady Gaga is happy to 'embrace the challenge' of being a 38-year-old pop star

Cardi B 'regrets' her relationship with Offset

Sean 'Diddy' Combs intends to testify during his upcoming trial

Titanic reduced my son to tears, says Kate Winslet

Bono celebrated Michael Douglas' 80th birthday by singing for the Hollywood icon

Katy Perry tries to support new pop stars with their rise to fame

Katy Perry Has Solidified Herself As A Pop Icon

Katy Perry wants to 'celebrate' her breasts

Madonna Clapsback After Trolls Think She Looks Unrecognizable

Katy Perry Proud of 'American Idol' Salary | Billboard News

Katy Perry Says She Gets Mistaken for Katy Perry

Katy Perry Gives First TV Performance of 'Daisies' on 'American Idol' | Billboard News

Katy Perry is writing music from 'a place of love' after becoming a mother

Katy Perry Releases New Single 'Daisies' | Billboard News

Madonna slams 'ageism and misogyny' shown towards her over Grammys appearance

Madonna reveals her 40th anniversary 'Celebration World Tour' shows

Katy Perry insisted a controversial scene in her 'Woman's World' music video is supposed to be "slapstick" and "sarcastic"

Lady Gaga Throws Shade At Katy Perry: 2008