Trey Songz' album Trigga has officially hit stores. Even though the Target version of the album has bonus tracks added, Trey decides to release them to the net for streaming. For the first track, he joins forces with Justin Bieber to bring a remix to his song 'Foreign' where the Biebs adds his own style to the single. He also drops 3 more extra cuts titled 'Hard To Walk Away', 'Serial' and 'Sneaky'. Trigga is available now in stores and on iTunes. Listen to 'Foreign' above and the other 3 bonus joints below.