Britney Spears returned to the stage at Planet Hollywood Resort in Las Vegas on Friday.
The 34-year-old star showed off her new shorter do and slimmer figure, which she highlighted in some very revealing outfits.
Spears also took to her Instagram account to show off her new hairdo, captioning the picture "Cut my hair again! Now off to work!".
The Womanizer singer also announced last week, that due to popularity, she had added 25 more dates to her Piece of Me show schedule.
Whilst Britney is busy back at work, her ex-husband Kevin Federline has been speaking out about their marriage.
Kevin, 38, who was originally one of Britney’s backing dancers, revealed he found the whole relationship "overwhelming" and "different" to how he had imagined.
Britney and Kevin had two children together, Jayden James, 9 and Sean Preston, 10.
Federline recently told VLAD TV, "That was a whole different lifestyle than I ever imagined. I mean, just getting around from place to place and having 20 people follow you all day long - your whole life kind of being told through somebody else's eyes."
"Everybody wants to put their own spin on it. We like, were caught right in the midst of that whole thing. It was so crazy. I look back at it and it's like, at times it was so overwhelming."