No. 2 Michigan (28-9) tied the game at 72 on a putback by Jordan Morgan with 31 seconds, a tap-in that came after the Wolverines had three other shots at the basket and came up with three offensive rebounds.
Harrison had all 12 of his points in the final 8:08, going 4-of-4 from three-point range after missing his first four shots in the game.
The last spot in the 2014 Final Four goes to Kentucky, which pulled out an amazing 75-72 win Sunday over Michigan in the Midwest Region final at Lucas Oil Stadium in Indianapolis.Freshman Aaron Harrison drained a three-pointer with 2.6 seconds remaining to lift the Wildcats (28-10), the No. 8 seed that knocked off unbeaten Wichita State and defending national champion Louisville before taking down last year's runner-up in the Elite Eight.
Kentucky, advancing to its 16th Final Four, will face West Region champ Wisconsin (30-7) on April 5 at AT&T Stadium in Arlington, Texas.