Since Regis Philbin is so old he can barely make it through the work week, Live! often has celebrity co-hosts. Kelly Ripa was excited to have NPH, who fired back "why don't you not have Anderson Cooper come so often?"

Today on Live!, Ben Stiller had the same conversation that you'll likely have with your own grandparents this holiday. Listen closely to Stiller's explanation when Regis asks, "What is a twitter account? Is it expensive to tweet?" Handy!

This morning on Live with Regis & Kelly, Jessica Alba came on to promote her role in the new film "Little Fockers." Regis showed particular interest in her character's line of work: erection medication sales.

James Franco and his mustache appeared on Live with Regis and Kelly this morning. Regis ventured into dangerous territory when he suggested James trim his mustache. James also promised to sing at the Oscars. James Franco can do no wrong.

Selena Gomez told Regis and Kelly that the way she gets through a breakup is by eating junkfood and singing along to Taylor Swift's music with Taylor Swift. That sounds just like us! Minus the latter part.

Today on Regis & Kelly, Regis brought up the recent popularity of New Jersey. As it turns out, Regis is a big fan of Jersey Shore, "Snoozi" and The Situation and adopts his own nickname — The Satisfaction. Gross, Regis.

Live With Regis and Kelly kicked off their week-long Vegas vacation by inviting a comedian whose job is to make fun of Regis Philbin on a weekly basis. The Soup's Joel McHale was today's guest and he did not disappoint.

This morning, Elton John provided us with a quick analysis of Regis Philbin's psyche, based on Philbin's desire to call John by his Knighthood title of "Sir," despite John's protests. Watch the awkwardly funny clip inside.

This morning on Regis & Kelly, Regis brought up the topic of baby boomers (aged 45 - 65) being dissatisfied with sex. But Regis, being 128, reminded us that he does not fit in that age category. "Yeaaaah!!"

Tracy Morgan and Regis Philbin join The Marriage Ref for an upcoming episode, and Tracy chatted with Regis and Kelly this morning about keys to a great marriage. Yes, great sex and six-cheese lasagna are vital components indeed!

Harrison Ford went on Live with Regis and Kelly to kiss everybody; speak words in his mellifluent, euphonic bass; and sport some pretty awesome yellow socks. Oh, and he was promoting his new movie Morning Glory. Video inside:

Once a year the age difference and scripted chemistry between Regis Philbin and Kelly Ripa is masked by something more than heavy TV makeup. That day is Halloween. And their costumes were actually pretty funny! Here are all of them.

SVU's Elliot Stabler chatted with Regis and Kelly about how he's New York City's best tourist attraction. While it's nice to see the show filming out and about, Christopher Meloni admits it's a bother to the locals.

Jersey Shore's Snooki and JWoww from appeared on Live Regis and Kelly to promote the show's season finale, but ended up genuinely mystifying Regis Philbin. Listen to the girls attempt to explain their actions to the senior citizen crowd inside.

This morning, Cooper told us about his days as a childhood thief. But rather than stealing candy or toys, he would take the cutlery from airplanes, because "one day I'll have a house and need cutlery." How practical.

Blaming the rumor on twitter and other "internet things," Jon Hamm said the possibility of playing Superman in Christopher Nolan's Man Of Steel is "news to him." It gets better, though: he sounded more than enthusiastic about the opportunity!

In a special one-on-one interview with Regis, Will Arnett opened up about how he first met his wife Amy Poehler seven years ago. Other highlights include: a clip from next Tuesday's Running Wilde and a very Great Gatsby-esque suit.

Letterman took a break from hosting when he made a rare guest appearance on Live! today. In this clip, he discusses the controversy that surrounded his day job months ago while showing off his spot-on impression of Jay Leno.

This morning on Live!, Jennifer Aniston was discussing her Barbara Streisand-inspired Harper's Bazaar photo shoot when, prompted by a, "You played dress up!" remark from Regis Philbin, responded with, "I do it for a living, like a retard." Video inside.

Joey Lawrence stopped by Regis and Kelly to discuss his latest project, but who wants to hear about that? Today, as I'm sure it always does, the conversation shifted to his Blossom days and Joe told his story of "Whoa!"