Jennifer Lawrence is on the cover of Rolling Stone this week, and she looks amazing (does she ever not?), wearing heavy black eyeliner and a sheer white T-shirt that gives a clear view of sideboob. And then inside the mag, she wears an extremely low-cut red swimsuit (how "Baywatch"!) that reveals what might be a new type of cleavage -- insideboob. Sure, she might be a bit more covered up than other celebrities who have shown us some sideboob (ahem, Lauren Conrad), but hey, it still counts. Speaking of those other celebrities, click through to check out some legendary sideboob moments from Hollywood's biggest stars...