Rihanna celebrates in a bikini after finishing up her new album, "Unapologetic."

While we commemorate most milestones with entire boxes of anything chocolate covered, Rihanna likes to celebrate by showing off her FLAWLESS body in a skimpy bikini (barely there swimwear seems to be her thing, BTW) like she recently did in honor of wrapping up her forthcoming album, Unapologetic. Hey, to each their own!  But thank goodness she shared the photo -- we were kinda getting tired of seeing Rihanna with all her clothes on.

The "Diamonds" singer showed off her swimsuit bod (Those abs! That perfectly tousled hair! The EPIC tattoo!) on Twitter along with the caption "We havin a celebration.... WE HAVE AN ALBUM!!! #UNAPOLOGETIC." And just in case y'all need a quick reminder why Ri is queen: Not only does she look good with bedhead, after partying all night for Halloween, and when she's sad, she even looks AMAZING while carelessly splashing around in a pool. MORE important: We've never been to an album wrap party, but if they all involve GORG pop stars hanging out in their very small swimsuits while in tropic destinations, we're gonna make it our life's mission to somehow get on ALL those guest lists.

Photo credit: @rihanna