In the past week, Zynga debuted rapper Dr. Dre’s video for his new single 'Kush' in Mafia Wars; Kobe Bryant signed on with 6waves to make his very own social game; and mega-author James Patterson released James Patterson: Catch a Killer.  Earlier this year, Zynga used Snoop Dogg in a publicity stunt to promote a Mafia Wars expansion, and Booyah's Nightclub City streamed an entire KISS concert live inside the game.

What this means is that Facebook games have clearly adopted the time-honored tradition of using famous faces to create high-profile celebrity tie-ins.

While having celebrities endorse your social game has a certain sex appeal — does it actually work? If we've learned anything from the traditional video game space (you know, games played on Xbox 360, PlayStation 3, etc) - a star-studded endorsement doesn't necessarily equal instant success. Sometimes it's just the opposite.

A few celebrified stinkers off the top of my head include renowned action director John Woo's disastrous video game Stranglehold, which starred Chow Yun-Fat and promised all of the same awesome slo-mo shooting sequences that you'd see in one of his movies like Hard Boiled or A Better Tomorrow  – but in reality, it was just a huge sloppy mess. Rapper 50 cent also has lent his name, likeness and music to two video games, the first earned an average score of 50/100 on Metacritic. The second scored a little higher, but I'd argue that's because the game was unintentionally funny rather than really amazing. Then there's Halle Berry in Catwoman, Drew Barrymore, Lucy Liu and Cameron Diaz in Charlie's Angels and Shaquille O'Neal's Shaq Fu, which is so derided that there's a website devoted to destroying all copies in existence.

Celeb-powered games seem to work best when the game is actually, well, good, and when the star power is more of a side dish for the main course.  In the best examples, they're naturally integrated into the whole experience as sort of an added bonus. Grand Theft Auto 4, arguably one of the best games of all time, includes a slew of celebs — but they're not credited in the game and it takes a careful eye (and ear) to find them. Brit comic Ricky Gervais performs a standup act in-game, but you won't know until you visit the Liberty City's virtual comedy club. Same for the Halo series for Xbox, which has cameos from the likes of Nathan Fillian (‘Firefly,' ‘Castle'), David Cross ('Arrested Development) and Greg Grunberg (‘Heroes'), and then there's the Tom Clancy's Splinter Cell series which has gained so much cache, most people forget that the author's name is attached.

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