Today is a big day for two reasons: the film Pain and Gain starring Mark Wahlberg and Dwayne "The Rock" Johnson hits theaters, and Channing Tatum turns 33! And what's one thing these three guys all have in common? They don't look too bad with a shirt off!

For this week's Hot Guy Friday, we're bringing you the hottest pics of three of Hollywood's biggest muscle men -- you're welcome!

Need proof that you can be super rich and super cheap? Look no further than some of your favorite celebrities.

The Game went well beyond the standard 20 percent when he tweeted about leaving a $6,000 tip for his waiter at West Hollywood hotspot Capitale Grille. His waiter later went to TMZ and said the tip was actually $250, but that's still more than generous from the rapper.

However, there are some celebrities who are notorious for leaving comically low tips or in some cases, none at all. Check out our roundup of 12 celebrities whose tables you don't want to wait on anytime soon!

Nicholas Hoult may be busy offing some seriously tall guys in Jack The Giant Slayer (out today), but when he’s done, he may want to head to Hollywood to continue picking off these big guys. While many leading men are known for being notoriously tiny (so that there’s height difference between him and a female co-star), a few major names in the biz measure up to well above six feet tall.

Here are some of Hollywood’s biggest players (literally)!