There's nothing quite like a hot guy on Instagram, and when it's a celebrity guy, it's even better. Earlier in the Summer, we got excited for the season with a bunch of the hottest shirtless celebrity snaps on Instagram, but we want to make sure you're getting a constant stream of hotness all year long. We've already conducted in-depth studies of some of our favorite guys, from Ian Somerhalder's amazing selfies to Zac Efron's constant perfection, but now it's time to widen the scope. Keep scrolling for 40 male celebrities who can give you your daily dose of hotness every day. Source: Instagram