LOS ANGELES, CA - OCTOBER 05: Singer Nick Carter (R) and dancer/TV personality Sharna Burgess attend 'Dancing with the Stars'
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Nick Carter's on the 21st season of Dancing With the Stars right now, and he didn't waste time dropping a fan-service nostalgia bomb. In the competition's fourth week, the 35-year-old Backstreet Boys singer shook it to 1997's "Everybody (Backstreet's Back)."

Alongside dance partner Sharna Burgress, Carter rocked a routine that almost rivals Magic Mike XXL's perfectly hilarious and sexy use of "I Want It That Way" as performed by Joe Manganiello. (Was that the best movie moment of the summer?!)

Hit E! Online to see Nick Carter's 2015 version of "Everybody (Backstreet's Back)."

In the same episode, Tamar Braxton did one of her own songs, 2014's "King."

Carter's competition in season 21 includes Braxton, Paula Deen, "Keep Your Head Up" singer Andy Grammer and Bindi Irwin, the late Steve Irwin's 17-year-old daughter with wife Terri Irwin. Icon Chaka Khan and actor Gary Busey were among the first eliminated contestants.