In what year was the album “Tonight” released by BIGBANG?

In what year was the album “Tonight” released by BIGBANG?: The album “Tonight” was released in 2011 by BIGBANG, featuring 5 tracks.
What is the most successful song from the album “Tonight” by BIGBANG?: “Tonight” is the biggest hit from the album “Tonight” by BIGBANG.

Other artists of K-Pop