Blake Shelton Brags Onstage, I Drink, Get Over It!

Blake Shelton sent a message to his fans -- and possibly In Touch magazine -- about his boozing habits during his latest concert.

Blake played the Tortuga Music Festival in Fort Lauderdale this weekend ... and while onstage he took several healthy swigs from a cup that read, "I drink, get over it" -- and he made sure cameras captured the phrase.

Blake recently filed a defamation lawsuit against In Touch for its cover story about him hitting "rock bottom" and going to rehab. In Touch says there's no defamation, since Blake's proudly created a hard drinking image.

We suspect these pics might end up in court.