Conversation so far:
What is silence is easy?
their second album, Silence Is Easy.
How many songs were on the album?
CANNOTANSWER.
Did the album win any awards/recognition?
CANNOTANSWER.
Did any of their songs on the album do well?
collaboration was short-lived.
Who did they collaborate with on the album?
the band agreed to work with him on their second album.

Question: Agreed to work with who?
Self-contained rewrite: With whom did Starsailor agree to work on their second album?