Britney Spears UK Tour Launch Party Pictures

Jason Trawick led Britney Spears into the Sanctum Soho Hotel for her UK tour launch party in London today. The couple arrived overseas earlier this week, and Britney's been busy doing press ever since. She stopped by the Kiss FM studios and sat down for an interview on Daybreak to talk about her many projects, though it was the jewelry on her left hand that grabbed all the attention. Britney Spears wore a diamond that some thought was an engagement ring, but her reps have since denied the rumors. Without a wedding to plan, Britney still has a full plate, and she'll kick off the next leg of her Femme Fatale tour in Russia later this month before performing in England in October.