Complex sentence: All non-bonus tracks from the album have been released as digital singles; the cast's debut single, a cover of Journey's Don't Stop Believin', charted within the top five in many countries and has sold over one million copies in the US.
Split into simpler sentences: All non-bonus tracks from the album have been released as digital singles. The cast's debut single, a cover of Journey's Don't Stop Believin', charted within the top five in many countries and has sold over one million copies in the US.