The "Teenage Dream" singer, 40, welcomed a few concertgoers on stage during her Lifetimes Tour stop at the Little Caesars ...

Pop culture expert Nessa Diab joins TODAY’s Jenna Bush Hager and guest co-host Matt Rogers to share the latest Hollywood scoop, including Katy Perry spotted at dinner with former Canadian Prime ...

Orlando Bloom playfully responds to Katy Perry and Justin Trudeau dating rumors with a humorous nod to a viral satire post.