By Anna Hecht
Updated Jun 15, 2016 @ 5:22 pm
Todd Williamson/Getty

Britney Spears knows all about Vegas weddings. We all remember her 55-hour Las Vegas wedding to childhood friend Jason Alexander in the infamous "Little White Wedding Chapel" on the Vegas strip. This time around, however, it's not her own Sin City wedding that Spears is gearing up for. Instead, the singer will be serving as a bridesmaid to her "bestie" who's tying the knot in Las Vegas. And based on an Instagram video she just posted, Spears is pretty excited about it.

While on the way to participate in her friend's nuptials, Spears, 34, filmed an enthusiastic selfie video of herself and several friends in the car. In the clip (below), Spears echoed her friend's sentiments, saying: "Hi! Hello! In the desert! Here we go!...We're about to become bridesmaids!"  

My bestie is getting married in Vegas this weekend! Gotta go try on that bridesmaid dress lol

A video posted by Britney Spears (@britneyspears) on

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We couldn't help but notice the pop princess's perfect tan and eye-catching glittery eye shadow. She looked as gorgeous as ever while heading back to Las Vegas, where she'll resume her Piece of Me at Planet Hollywood performances on Friday, June 17.