Katy Perry, Amber Heard Party Like It’s 1990 at Skating Rink Birthday Bash (PHOTOS)

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Stars show their other side!
Katy Perry and Amber Heard had a blast from the past bash this weekend.

The two attended a roller-skating, ’90s themed birthday party for America’s Next Top Model pal Johnny Wujek. Perry, 27, dressed the part, wearing an outrageous floral getup that she paired with jean shorts, a beanie baby and a colorful back pack.

Meanwhile, the 26-year-old Rum Diaries actress, Heard, wore a sexy lace top and jean cutoffs.

Perry and Heard weren’t the only famous faces to hit the roller rink.

Rachel Bilson and her beau Hayden Christensen also got in on the fun. The duo were a bit more low key, dressed in jeans and t-shirts, but they did lace up their skates.

Katy, who looked to be the life of the party, tweeted a photo of her and best friend, Raising Hope star Shannon Woodward, at the bash, writing:

What do you think of an adult skate party? Immature or loads of fun? Sound off in the comments!