Shoppers at a Gap store in San Francisco can check-in via the new social music app Roqbot to receive a 25 percent discount on their purchases.

Music social network Flowd is tapping into mobile with applications for iPhone, Android and Nokia devices that let consumers keep a pulse on their favorite music artists via incentives and rewards.

Thirty-six percent of shoppers will take advantage of their mobile devices for shopping this holiday season, using their phones to look up competitive products and prices, according to a study by MarketLive.

Universal Music Group is targeting Hispanic music fans with a ringtone subscription service called Movihits.

Thumbplay Inc. has partnered with 20 new content providers including Beggars Group, Merge Records and Redeye Distribution, bringing its number of available tracks to more than 8 million.

Pop star Justin Bieber has tapped mobile to keep connected to his widespread fan base and drive sales of ringtones and full-track downloads.

Mobile entertainment provider Myxer is partnering with EMI Music to bring the record company’s digital library to the mobile music platform so fans can buy officially licensed content.