The first semi-final at Eurovision 2012 takes place on May 22. To help you decide which country deserves your televote, I'm reviewing some of this year's most talked-about entries. Today's acts include Roman Lob--a German heartthrob singing a song composed by Jamie Cullum--and Valentina Monetta--a woman from San Marino who waxes and wanes on cyber-sex.

The first Eurovision semi-final kicks off on May 22. To help you decide which country deserves your televote, I'm previewing some of this year's most talked-about contestants. Today's acts include Nina Zilli--Italy's answer to Amy Winehouse--and Mandinga--a Cuban-Romanian funk group that mixes bag pipes with leather hot pants with electronic accordions.

The first Eurovision semi-final kicks off on May 22. To help you decide which country deserves your televote, I'm previewing some of this year's most talked-about contestants. Today's acts include Ireland's Jedward-easily the most successful X-Factor rejects ever-and Sweden's Loreen-the odds-on favorite to win the Eurovision crown this May.