Celebrities including Katy Perry and Khloe Kardashian have tested their biological age and come out far younger than their ...

Katy Perry shares intimate Instagram photos with boyfriend Justin Trudeau, giving fans a rare glimpse into their relationship ...

The "Firework" singer shared a new date night pic with the former Canadian prime minister.

Add Yahoo as a preferred source to see more of our stories on Google. Katy Perry and Justin Trudeau enjoyed a make-out session on the singer's yacht last month. ‘Cause baby, he’s a firework! Katy ...

Some of these might surprise you. From Katy Perry to Bob Dylan, here are artists that have had a Christian music era.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Katy Perry and Justin Trudeau’s summer fling has survived the test of time and transformed into a fall ...

All the latest news and updates on American singer Katy Perry, who is best known for songs including Firework (2010), California Gurls (2010) and Roar (2013). She was previously a judge on talent show ...

All the love is on display at Katy Perry's Lifetimes Tour. A couple, Jason Ve and Arthur Woods, got engaged in front of thousands of cheering fans during the pop star's latest show at New York's ...