Why He's Sexy: Brett Eldredge's bright blue eyes are so striking that it's hard to focus on his music -- or anything, really -- when he's performing right in front of you. Luckily, Eldredge combines his model-worthy hairstyle, adorable smile and sexy eyes with some serious singing and songwriting skills. The 'Don't Ya' hitmaker admitted after a stint on Taylor Swift's Red Tour that when it comes to performing, he just does his best to turn on the charm and win over new fans. Mission: Accomplished, whether he's on or off the stage!

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