The most ubiquitous abbreviation and emoticon of the mobile generation are now a song title. This moment has felt inevitable for some time, but the day has officially arrived thanks to R&B singer Trey Songz, who teams with rappers Gucci Mane and Soulja Boy Tell'Em for the most absurdly appealing, tech-savvy song of the year to date. "Shorty just text me, say she wanna sex me/LOL, smiley face, LOL, smiley face," Songz exclaims in a cadence resembling a nursery rhyme. "Shorty sent a Twitpic, saying 'Come and get this.' " The appropriately named duo Fisha & Price produce a beat that sounds like a preschooler's toy, and the cyber-flirtatious lyrics recall Soulja Boy's own recent hit, "Kiss Me Thru the Phone." Anyone younger than 15 is already texting their friends about their new favorite song. --Melanie Fried