Forbes has published its annual list of the 100 Most Powerful Celebrities List, and this year it contains a few shockers: Oprah's been knocked off the top spot, there's a teenager in the Top 3, and reality star Bethenny Frankel makes the cut.

Oprah Winfrey's ceded poll position to Lady Gaga, despite earning roughly three times as much.

Gaga's moved up from No. 4 on the list, which measures celebrity power through a combination of entertainment-related earnings, media visibility and social media popularity.

Although 'Forbes' estimated Gaga's earnings in the last year as $90 million -- as opposed to Oprah's mighty $290 million -- it also noted the huge importance of her 32 million Facebook fans and 10 million Twitter followers.

'Forbes' editor Dorothy Pomerantz explained that, "Lady Gaga beat Oprah this year because of her social media power. She can use Twitter and Facebook to work the 'little monsters' into a frenzy that leads to record sales and media attention. She's the best example of how celebrities will need to manage their careers in the coming years."

You know why Rachael Ray is smiling all the time? She's the richest food star in the world. According to the latest Forbes list of top-earning celebrity chefs, Rachael Ray leads the pack. In fact, of the top 10 names, all but two are TV stars.

Therefore, you better believe that all that exposure on Food Network, Bravo, Travel Channel, Fine Living, BBC America, and Fox -- not to mention syndication and appearances on talk shows and demonstrations on the Today Show -- makes a big difference.

The richest man in the world has a secret. He likes to watch the goings on in Pine Valley. You know, the place Erica Kane -- Susan Lucci, don't you know -- calls home. And now he's going to be on his favorite ABC soap, too -- for the second time! Billionaire Warren Buffett will play himself on All My Children during May sweeps.

This annual list from Forbes is half "wow, I didn't know they made that much" and half "oh my God, Oprah made more money in the last minute than I've made in the past five years." But it's a fun way to see who's making what. Some of the people you pretty much assume will be on the list, but there are a few surprises too.

Oprah is indeed on top again. From June 2006 to June 2007 she made $260 million. I could pay off my Visa with that money. Number two isn't even on TV anymore: Jerry Seinfeld. He made $60 million during that year. I won't spoil the rest of the list for you, but let's just say that the top twenty includes two people from American Idol, someone from a reality show featuring models, and a whole bunch of talk show hosts, both daytime and nighttime.

The list is also a TV show. The Forbes TV 20 will premiere on E! tomorrow night at 5pm.