NOW HEAR THIS: All your "American Idol"-watching, karaoke-loving, shower-singing friends will be belting out their favorites once they get this iPod gadget. The iKaraoke (was $50, now $39) is a microphone for your iPod or iPhone. Plug in the mic and put on your own personal concert. Choose your favorite song; then the lead vocals fade so you can pipe in your own... well, pipes. But wait, there's more! For those moments when you find the perfect song to serenade your friends to, the tiny pen-like device can transmit the song with your vocals to a car stereo, home stereo, or CD player. GET IT: Urban Outfitters (3111 M St. N.W.; 737 7th St. N.W.).