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See the VideoBritney Spears Shows Off Killer Bikini Body — a Timeline of Her Picture Perfect Abs!

Britney Spears and six-pack abs go hand in hand like peanut butter and jelly. There's no doubting the fact the mother-of-two, 33, has a flawless body — and she proved that once again by wearing a skimpy hot pink bikini in her recent Instagram video.

"Putting in work in preparation for my tryout for the US Synchronized Swimming team. Rio here I come…" she joked.

Take a look:

Click through to see Brit's abs through the years!