Shania Twain/Bastian Baker

Country singer Shania Twain had her heyday in the early 2000s. But don't count her out just yet. Twain, who returned last year with NOW, her first studio effort in 15 years, continues to mix pop and country impulses. Album opener, "Swingin' With My Eyes Closed" even includes a reggae-tinged segment. Producer and former hubby Mutt Lange (Def Leppard) might not be in the picture any longer, but Twain's ability to churn out radio-friendly fare remains. She reportedly hand-picked the opener, Swiss singer Bastian Baker, so be sure to arrive early to hear his set. (Niesel)