Maroon 5

A mix of polished pop/rock and neo-soul made Maroon 5 one of the most popular bands of the 2000s, with songs like "This Love," "She Will Be Loved," and "Makes Me Wonder" all topping the charts worldwide. Previously, bandmates Adam Levine (vocals/guitar), Jesse Carmichael (keyboards), Mickey Madden (bass), and Ryan Dusick (drums) had spent the latter half of the '90s playing in Kara's Flowers, even releasing a debut album for Reprise Records while still attending high school. The record tanked, however, and Kara's Flowers found themselves dropped from Reprise's roster. After briefly attending college, the bandmates regrouped as Maroon 5, adding former Square guitarist James Valentine to the lineup and embracing a more R&B-influenced sound. Several years later, the quintet had officially risen to the forefront of pop music with Songs About Jane and It Won't Be Soon Before Long, both of which went multi-platinum.