in 2005, styx released an album of cover tunes, "big bang theory", which reached the "billboard" top 50 on the album charts, their highest charting album since 1990. their version of the beatles song "i am the walrus" received some radio play, and a video was made for the song, which was subsequently featured in their live shows. still, the album had a short life on the charts and failed to make much of a dent.