Britney Spears wants to "trade" gig tickets with Adele.

Adele

Adele

The 'Toxic' hitmaker was excited to learn the 'Hello' singer wants to see her 'Piece of Me' Las Vegas show, and has offered the British star two free tickets - so long as the 28-year-old star gives her some for one of her concerts in return.

She tweeted: "@Adele I'll trade you 2 tickets to my show for 2 tickets to YOURS! Stop by #PieceOfMe and say #Hello anytime!! (sic)"

Britney made the posting hours after Adele - who has two-year-old son Angelo with fiance Simon Konecki - revealed in an interview her ambitions for the future.

Speaking to i-D magazine, she said: "I'd like to tour properly. I'd like to see Britney in Vegas. Dunno about more kids.

"I'd like to make records forever with the time I've been given for this one. If I can do that I'll be really f**king happy."

Meanwhile, the 'Skyfall' singer also admitted she broke down in tears when she met one of her idols, Fleetwood Mac singer Stevie Nicks.

She said: "I was sobbing all over her, oh my God.

"I don't really like crying in front of famous people because it's awkward and it can make them feel really uncomfortable. But I couldn't contain myself."