TALLAHASSEE, Florida (Ticker) -- Tim Pickett authored a comeback for the ages for Florida State.

Pickett scored 22 of his season-high 30 points after halftime as the Seminoles rallied from a 24-point deficit to force overtime and stun 11th-ranked North Carolina with a 90-81 Atlantic Coast Conference victory.

North Carolina (11-4, 1-3 ACC) used a 21-0 run to build a 36-13 cushion in the first half and Raymond Felton's steal and jam made it 42-18 with 5:39 before halftime. Florida State played better near the end of the half to pull within 49-35.

The Seminoles used a 19-3 tear to pull within 72-69 with 5:16 remaining on a tip-in by freshman Von Wafer. Pickett was unstoppable in the second half as he victimized Rashad McCants with an assortment of jumpers and drives.

Todd Galloway's 3-pointer with seven seconds left in regulation finally got Florida State even at 78-78. Galloway was wide open after Felton fell.

"He played with a lot of poise and confidence," Florida State coach Leonard Hamilton said. "He hit an awful big three to put us into overtime and that wasn't the biggest shot of the game."

In the extra session, Florida State (13-5, 2-3) took complete control and scored the first 11 points. Freshman Alexander Johnson's layup 27 seconds in gave the Seminoles their first lead and Pickett added a 3-pointer and a jumper for a seven-point cushion.

"When you've lost four in a row, you're down 24, you're back's against the wall, some times you just have to do something," Hamilton said. "I think that having our backs against the wall relaxed us and allowed us to not think about the shots we were missing, and we put ourselves in a position to win."

North Carolina was on its way to being shut out in overtime before McCants drained a long 3-pointer with 20 seconds left. The Tar Heels made 1-of-9 shots in the extra session, firing up exclusively 3-pointers.

"They totally outdid us in every phase of the game, including the bench," North Carolina coach Roy Williams said. "They outcoached us too, it wasn't just the players."

The Seminoles ended a four-game skid, bouncing back from Sunday's overtime loss at Virginia. Pickett had been 6-of-30 from the floor in the last two losses before a 8-of-17 performance against the Tar Heels.

"I know I'm a great player," Pickett said. "When you struggle, you've got to keep your head up. If you keep your head down, you're going to struggle."

McCants finished with six 3-pointers and scored 14 of his 26 points in the first half, when North Carolina went 10-of-15 from the arc. The Tar Heels missed 12 of their final 14 attempts from the arc.

Florida State exposed North Carolina on the defensive end, where Williams' team has struggled. The Tar Heels entered allowing opponents to shoot 43.5 percent, and the Seminoles carved them up at 56 percent (33-of-59).

"It was a difficult one for us to handle tonight," Williams said.

Johnson provided a big boost with 15 points on 7-of-11 shooting and also had a big block on center Sean May to set up Galloway's tying 3-pointer. Pickett grabbed nine rebounds to help the Seminoles to a 40-31 edge on the glass.

The Tar Heels have dropped 13 of their last 19 ACC regular-season games.