It's a good week to be Tim McGraw. Okay, every week is a good week to be McGraw, but especially this one, since the country superstar's single 'Highway Don't Care' clinched the top slot on the country charts.

'Highway Don't Care' was a team effort cut for McGraw's 'Two Lanes of Freedom' record, thanks to vocal help from Taylor Swift and guitar playing from Keith Urban. The track marks McGraw's 34th career No. 1 song, and his second consecutive No. 1 single from his latest album.

"I thought this song had the potential to be really special the very first time I heard the demo," McGraw explains. "And then standing on the stage with Taylor and Keith performing it live for the first time on the ACMs, I knew that it was really the kind of magical collaboration that only comes along every few years. The energy that night was undeniable… I know the three of us could feel it."

It would be hard for a song not to feel magical with those three superstars performing together -- but McGraw tips his cowboy hat to country music radio for helping 'Highway Don't Care' climb to the top.

"Radio continues to be supportive and excited about the music we're giving them, and I'm so thankful for my friends there and for all the fans who have really taken this thing to the next level," he says. "It just keeps getting bigger and bigger in our show every night."

In addition to reaching the top of the charts, 'Highway' has sold more than 1 million downloads and set a record for single week audience impressions with 41.3 million during the week of May 27-June 2.

'Highway Don't Care' has peaked at a perfect time for McGraw, who is in the middle of his Two Lanes of Freedom Tour. The 30-city tour will continue to run through the end of the summer, with Brantley Gilbert and Love and Theft opening up the show.