Gallery Launch Gallery

Summer's almost over, but we've still got plenty of reason to celebrate -- because Lili Reinhart 's turning 29 this weekend!

We've put together a gallery of some of the "Riverdale" star's sexiest and most stylish snaps from over the years to mark the occasion ... and no, it's not just you, we feel it getting hot in here, too!

And think about it, now there are two reasons to celebrate: Lili turning 29, and us putting out another show-stopping gallery! Check it out to see even more!

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