Released July 2, 1981, 4, also known as Foreigner 4, is the fourth studio album by Foreigner. The album was originally titled Silent Partners and later was changed to 4, reflecting both the fact that it was Foreigner's fourth album and that the band was now down to four members. Also featured on the album were Junior Walker, who played the saxophone solo in the bridge of "Urgent", and a young Thomas Dolby, who would go on to enjoy a successful solo career. Featuring the hit singles "Urgent", "Waiting for a Girl Like You" and "Juke Box Hero", the album was a success worldwide, holding the #1 position on the Billboard album chart for 10 weeks, and eventually selling over seven million copies in the US alone.
In honor of the anniversary, check out the band's official videos released from the album.