Happy Birthday, Chris Martin!

On Tuesday (March 1), MTV News celebrated the birthdays of two of the biggest pop stars in the world at the moment in Justin Bieber (who turned 17) and Ke$ha (who is now 24). Today, the cake frosting is extra thick for Coldplay frontman Chris Martin, who is now 34 years old.

The world first got wind of Martin back at the turn of the century when he starred in the video for Coldplay's "Yellow," a massive worldwide hit. Though they were initially dismissed for being a tepid Radiohead soundalike, they have gained the respect of the critics and the love of the fans by growing into their own sound (and selling millions of records and filling stadiums along the way). Their debut album Parachutes was great, but 2002's A Rush of Blood to the Head (which featured the hits "In My Place" and "Clocks"), 2005's X&Y ("Fix You") and 2008's Viva La Vida or Death and All His Friends ("Lost" and "Violet Hill") really cemented Coldplay as an incredible collection of talent, buoyed by Martin's incredibly dynamic and distinct voice. Their fifth album, which is currently being recorded and should be out some time later this year, promises to be one of the biggest and most important of 2011.

Along the way, Martin has managed to find himself a number of other outlets outside of Coldplay. He has worked on a handful of solo songs and has collaborated with an eclectic batch of stars, including Jay-Z, Nelly Furtado, the Streets, Kanye West and Ron Sexsmith. He has also made cameo appearances (mostly as himself and mostly in funny contexts) in a few films and television shows, including the zombie comedy "Shaun of the Dead" and a memorable episode of Ricky Gervais' "Extras." And, of course, he's married to Gwyneth Paltrow.

But Coldplay is still his main gig, and they have not only created some of the more interesting rock of the 21st century but are also great at experimenting with video. Their clip for "The Scientist" remains one of the best clips ever made, so it deserves a second spin on Martin's birthday.