Tyler Hansbrough, Ty Lawson and North Carolina won a national championship a season or more in the making, stomping out Michigan State’s inspirational run Monday night with a 89-72 blowout that wasn’t even that close.

Hansbrough scored 18 points, Wayne Ellington had 19 and Ty Lawson led all scorers with 21 and also had a record eight steals — and now they and Danny Green can all head to the NBA feeling good about their decision to return to school to bring Carolina’s fifth championship back home.

All those upperclassmen, save Hansbrough, came back in part because their draft prospects didn’t look so good. They also didn’t want their college careers to end on last year’s embarrassing loss to Kansas in the Final Four. That was a dud of a game in which they trailed 40-12 in the first half and Billy Packer was telling CBS viewers it was over.

This time, North Carolina led 36-13 around the time "Dancing With The Stars" was starting on another network. At least nobody knew how that one was going to end.

Michigan State (31-7) simply never got any momentum. From the start, it was clear there was no way Carolina was losing control of this one, no chance for the Spartans to serve up that definitive ray of sunshine and warm-and-fuzzy smile for a state that’s been battered by the ailing economy.

The Tar Heels (34-4) were up 55-34 at halftime, breaking a 42-year-old title-game record for biggest lead at the break and setting the mark for most points at the half.

This collection of NBA talent was too, too much from wire to wire, from the start of the tournament, to the very end.

Carolina won every game by double digits, something that hasn’t happened since Duke did it in 2001.

Lots of basketball fans saw this coming, including America’s No. 1 Hoopster-in-Chief.

Yes, President Barack Obama picked the Tar Heels to take it all in his much-publicized bracket.

Magic Johnson, Michigan State’s Spartan-in-Chief, joined Larry Bird at center court to present the game ball, a tribute to the 30-year anniversary of their historic matchup and Michigan State’s first title.

From there, it was pretty much all "Showtime," all the time — but not for Michigan State. Heck, Magic didn’t even stick around for the end of the game. He was spotted walking up the tunnel with 31/2 minutes left.

Spartans coach Tom Izzo tried to call a timeout to stop the onslaught with 6:45 left in the first half. His team came out and promptly turned it over — one of 14 in the first half, compared to only 12 baskets.

Goran Suton led the Spartans with 17 points, and Kalin Lucas, the Big Ten player of the year, had 14 — most scored once the game was out of hand, which was very early in this one. Michigan State pulled within 13 a couple times late in the second half, and the crowd of 72,922 — mostly pulling for the Spartans — tried to make some noise.

But for most of the game, cavernous Ford Field had the atmosphere of a Lions game, save the few thousand Tar Heel fans whose Carolina Blue team put in a much better blue-collar effort than the team that was supposed to pride itself on that.

As for that 98-63 beatdown Carolina put on Michigan State in this same building back on Dec. 3? No fluke. In fact, Detroit might want to give Ford Field a nice, long break. The Lions went 0-16 here last season, and there was no halt to the suffering on this night.

It was, almost literally, over before it began. Ellington had a double-pump scoop layup and a 3-pointer and Hansbrough spotted up and sank a 14-foot jumper — all in the first 4:25 to put Carolina ahead 17-7. It never got closer.

The Spartans, meanwhile, were having trouble simply getting the ball in after Tar Heel buckets, turning it over that way twice in the first 6 minutes, part of a depressing day that didn’t do justice to the effort they put in to get here. During pregame introductions, Carolina coach Roy Williams walked over to shake hands with Izzo, who was distracted, drawing up a play on the greaseboard in the huddle. He jokingly showed the diagram to Williams — and ya know what: It probably wouldn’t have mattered.

Izzo conceded in the lead-up to the game that if both teams played their best, Michigan State would lose. He’ll never find out if he was right because, while North Carolina was more than ready, the Spartans never showed up.