No, the song Drunk drunk again is not in the public domain because of the copyright infringement issues.
Drunk with You was created in 2002-02.
Hurricane Drunk was created in 2009.
Everybody Drunk was created in 2010.
Drunk on You was created on 2012-02-13.
Too Drunk... was created in 2008.
Dead Drunk was created in 2006.
Drunk Love was created in 2006.
Drunk in Public - 2012 was released on: USA: 27 June 2012
Why Don't We Get Drunk was created in 1973-04.
Drunk on the Moon was created in 1995-02.
Drunk in Public - 2012 is rated/received certificates of: USA:M (self applied)