Country superstar Tim McGraw's "Southern Girl" is being released to radio today as the fourth single from his Big Machine Records debut, TWO LANES OF FREEDOM. The "seductively melodic" (Pittsburgh Post-Gazette) track has had an infectious reaction from fans on the TWO LANES OF FREEDOM 2013 Tour, which continues to sell out venues coast to coast. "At the beginning of the tour, we threw a lot of new songs into the set list, and that's always a risky thing when an album is so brand new," said McGraw. "It didn’t take a whole weekend out there before the girls were shouting at us to play 'Southern Girl.' The song has a really cool groove to it that just gets everyone moving and sets the right tone for a perfect summer night."McGraw has hit a new top speed on the TWO LANES OF FREEDOM 2013 Tour that has capacity crowds topping out at more 21,000 fans a night, while catching a renewed level of excitement from music critics. "McGraw is approaching two decades since he broke big at mainstream country radio with 1994′s Not a Moment Too Soon. To maintain any career at the top for that long requires major stamina and showmanship. It requires a keen ear for timeless songs and for the kind of craftsmanship that accentuates the positives and compensates for the negatives. McGraw has held his own amidst a slew of male hatted and not-hatted country singers since his ascent. Some have burned bright and then flamed out. But he’s still here." Dallas Morning News"The man sweats star power and has an effortless, sexy swagger that make it hard to believe he's a mere mortal, yet he performs with humility, smiling at the response from the crowd as if he's genuinely surprised they like him." Tampa Tribune"With substance vastly overpowering flash, the country legend was in top form Friday night at USANA Amphitheatre, unleashing a set of hits spanning 20 years." Salt Lake Tribune"electrifying stage presence" Pittsburgh Post-Gazette"McGraw successfully set the party tone for the summer…" Buffalo News"characteristically high-octane…" BillboardMcGraw's latest single comes on the heels of his 34th No. one hit and all-star collaboration, "Highway Don't Care" with Taylor Swift, featuring Keith Urban on guitar. Since the release of his debut album in 1993, McGraw has sold over 40 million albums, won three GRAMMY’s, 15 ACM Awards, 12 CMA Awards and 10 AMA’s, while simultaneously maintaining a parallel career as a successful actor in such films as the Oscar nominated The Blind Side, Country Strong, and Friday Night Lights—as well as hosting Saturday Night Live, a rare honor for a singer in any genre. Nielsen-BDS recently certified McGraw as the most-played Country artist of the past 20 years (1992-2012) with more than 10 million spins detected and Mediabase recognized him as the most-played Country artist in the history of their tracking service. The TWO LANES OF FREEDOM 2013 Tour continues on this weekend with stops in Hartford, CT (6/28); Boston, MA (6/29) and Holmdel, NJ (6/30).