LONDON, ENGLAND - JUNE 01: The Sound Of Change Live" Concert at Twickenham Stadium on June 1, 2013 in London, England. Chime
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It's hard to believe R&B superstar John Legend hadn't landed a No. 1 hit on Billboard's Hot 100 chart until just this week. Ten years into his career, Legend's piano ballad "All Of Me" finally inched out Pharrell's inescapable "Happy" to top the singles chart after sitting at No. 2 for six weeks.

While most music fans are familiar with Legend's hits like "Ordinary People" and "Green Light" featuring André 3000, we're celebrating the soul singer's career milestone by digging a little deeper into his impressive catalog.

From underrated album cuts and soundtrack songs to remixes and collaborations, listen to some of our favorite John Legend songs you may have missed (or forgotten):