Today (August 29, 2013) marks what would have been Michael Jackson's 55th Birthday. To honor the King of Pop and to brighten our spirits, we've garnered our top 21 Michael Jackson songs of all time. Our song picks cover seven of his albums that span 30 years of his career -- from 'Got to Be There' to 'Invincible' -- intentionally leaving off Jackson 5 hits and posthumous releases.

In 1971, MJ released 'Got to Be There,' the title track off his soul and soft rock effort, and what launched his solo career. After three more semi-successful Motown Record albums (relatively speaking), Michael joined Epic, working with Quincy Jones and producing some of his best work. Infusing disco funk into his album, MJ dropped 'Don't Stop 'til You Get Enough,' 'Rock With You' and the title track from 'Off the Wall.'

Next up is the 29x Platinum 'Thriller,' in which we highlight five of Michael Jackson's songs -- 'Billie Jean,' 'Beat It,' 'Wanna Be Startin' Something,' 'P.Y.T.' and 'Thriller.' Continuing to work with Quincy Jones, MJ released 'Bad,' which produced six more successful singles and revealed a more risque, vulnerable side of Michael. The ones we've highlighted are: 'I Just Can't Stop Loving You,' the title track, 'The Way You Make Me Feel,' 'Man in the Mirror,' 'Dirty Diana,' and 'Smooth Criminal.'

Jackson continued to prevail, this time with 'Dangerous' -- which sold over 50 million copies without the help of Quincy. That album spawned 'Black or White,' 'Remember the Time' and 'In the Closet.' We also highlight his highly provocative collabo with his sister Janet on 'Scream' (From 'HIStory: Past, Present and Future, Book 1'), as well as 'You Are Not Alone' and 'You Rock My World' off his last studio album before his death, 2001's 'Invincible'.

So, Michael Jackson fans and PopCrush readers, which is your favorite song from from the greatest pop artist of all time? Vote below.