Conversation so far:
Was this an album?
Boyz II Men headlined a "Love Cruise" in honor of their 20th anniversary.
Did a lot of people go on the cruise?
CANNOTANSWER.
Was the cruise reviewed by critics?
CANNOTANSWER.
What else did they do to celebrate the 20 year mark?
release date with the help of Avex Group, the biggest Japanese independent record label.

Question: Were there any conflicts?
Self-contained rewrite: Were there any conflicts during Boyz II Men's creation of Love Cruise and Twenty?