Conversation so far:
Are there any other interesting aspects about this article?
Boyz II Men headlined a "Love Cruise" in honor of their 20th anniversary and in observance of Valentine's Day.
Was that an album?
The cruise took place February 11-14, 2011, and traveled from Miami, Florida, to Nassau, Bahamas.
What happen on the cruise?
Cruise passengers received a Boyz II Men welcome cocktail party, a concert performance by Boyz II Men, an additional fan appreciation concert by Boyz II Men.
What else did they do?
an additional fan appreciation concert by Boyz II Men, a photo session with Boyz II Men (in small groups), a formal prom night, a poker tournament.
Was the fans happy?
CANNOTANSWER.
What happen in 2012?
Boyz II Men contributed a cover of Japanese rock band L'Arc~en~Ciel's song "Snow Drop" to their 2012 tribute album.

Question: How long the party lasted?
Self-contained rewrite: How long the partyof Japanese rock band  lasted