Releasing the Unmixed Digital Version of Spring Tunes 2010. U.S.B. Digital welcomes the new returning of the Underground Sound Of Bulgaria (U.S.B.), Everything started in 2006 when Underground Sound Of Bulgaria released the first vinyl of DJ Lion and became the first label on the Balkans on the world music scene. Right away when the world changed on 360 with the upcoming digital music U.S.B. transformed to U.S.B. digital and until now the digital brother has released more than 400 tracks and 120 artist for 3 years and itʼs keep growing. The first edition of the series of CD compilations ,Spring Tunes 2010 will be fact in the digital universe on 13th of May 2010 . This session includes twelve of the best U.S.B Digital artist for the first quieter of 2010 and itʼs mixed by one of the label residents Oleg Korolkov a.k.a Matrick. All tracks are selected for all party people who love to dance and scream under the rhythm of the dance music and this is the main idea of the label in the already planed 70th titles for this year. So all PARTY PEOPLE ......LETʼS DANCE !!!