Conversation so far:
Who in the group had a solo career?
The most successful member of the group has been Ashley Parker Angel, who was signed to Universal's Blackground Records.
What was the name of an album?
CANNOTANSWER.
Did any of the other members go solo?
TMZ reported that Erik, Trevor, Dan & Jacob have returned to the studio to record the follow-up to O2.

Question: What else happened from 2003-2013?
Self-contained rewrite: What else happened from 2003-2013 along with "O-Town"?