Kesha dazzled on the red carpet at the 2014 Life Ball in Vienna, Austria, on Saturday, showing off a demure look while posing for photos. In other can't-miss shots, Kaley Cuoco couldn't stop smiling as she hit the town after a recent haircut , Alessandra Ambrosio was all about breaking a sweat, and Jennifer Lopez  and Ricky Martin got wild on stage. Keep reading to see all that and more!
Power of the Pixie
Kaley Cuoco smiled wide while showing off her new look in LA on Sunday.
Jennifer Lopez  felt the love while performing at Kiss 108's Kiss Concert in Mansfield, MA, on Saturday.
Livin' la Vida Loca
On Saturday Ricky Martin proved his moves are here to stay during his performance at the 2014 Life Ball in Vienna, Austria.
Amy Poehler  chatted about her new book, Yes Please, at a 2014 Book Expo America event in NYC on Saturday.
Clad in Plaid
Josh Hartnett  dined at Crossroads restaurant in LA on Saturday.
All That Glitters
Demi Lovato beamed after performing at a nightclub in London on Saturday.
Into the Groove
Snoop Dogg performed at the seventh annual Roots Picnic in Philadelphia, PA, on Saturday.
Stroll in the City
Dakota Johnson  laced up her tennis shoes before a walk with a pal in NYC on Saturday.
Adam Lambert  attended the last performance of We Will Rock You on Broadway in NYC on Saturday.
Lena Dunham let out a laugh during a stroll with B.J. Novak in NYC on Saturday.
Out and About
Drake brought his good looks to Mastro's Steakhouse in Beverly Hills on Friday.
Khloé Kardashian breezed through NYC's JFK airport in ripped jeans on Saturday.
Zoe Saldana  took center stage at the Step Up 11th annual Inspiration Awards at the Beverly Hilton Hotel in Beverly Hills on Friday.
Hilary Duff  was all smiles during her coffee run in LA on Saturday.
Stacy Keibler went shopping at Kitson  in LA on Friday.
Julie Bowen's ensemble matched the decor the Step Up 11th annual Inspiration Awards at the Beverly Hilton Hotel in Beverly Hills on Friday.
Rumer Has It
On Friday, Rumer Willis showed some skin at the LA premiere of The Odd Way Home, where she buddied up with Chris Marquette on the red carpet.
Taylor Swift  made a picture-perfect arrival at the airport in Narita, Japan, on Saturday.
Working It Out
Alessandra Ambrosio bared her midriff after scoring some exercise in LA on Friday.
Kesha went with an elegant look at the 2014 Life Ball in Vienna, Austria, on Saturday.