A month after his "drunken mistake" with former "American Idol" contestant Brittany Kerr, Jason Aldean walked the red carpet at last night's Country Music Association Awards with his wife Jessica.

As TMZ first reported, Aldean made out with Kerr at a bar on the Sunset Strip ... despite having a wedding ring on his finger ... because, you know, he's married.

Both parties apologized for the incident and Kerr was forced to shut down her Facebook page due to the negative reaction.

Aldean was nominated for three awards last night ... but went home empty-handed.