Britney Spears Is Red Hot In Her Favorite Blue Bikini

Forget "Pop Princess." Britney Spears has earned the new title of "Bikini Queen" even if she did the unthinkable and wore the same mini-swimsuit twice!

The singer is in Australia and on Sunday took a day cruise of famed Syndey Harbour with her sons Preston and Jayden, and her agent/boyfriend Jason Trawick. The group all looked to be having a spectacularly good time, and Jason certainly enjoyed the view of Brit in her itzy bitzy bikini.

The Spears clan toured Syndey's Royal Botanic Gardens on Saturday.

The Circus Starring Britney Spears, which began 10 months ago in New Orleans is finally wrapping up in Australia, although her concerts there have been stung by poor reviews because of her lip-syncing. Maybe the news that Brit "performs" but doesn't "sing" hadn't reached Down Under?

More importantly, Britney must LOVE that bikini. RadarOnline.com spotted her wearing the same tiny swimsuit at a hotel pool in August.

We'll forgive Spears the fashion faux pas though. She's been on the road since March and by the looks on her sons' faces, she's also become a terrific mom.