It's cross to bear, bear in this case being used in the same sense it is in weight bearing, Greeks bearing gifts or even ball bearing. It refers back to the Biblical tale of Jesus carrying his cross to Golgotha.
Lookin' Out My Back Door. Lookin' Out My Back Door is a song recorded by the American band Creedence Clearwater Revival, also known as CCR. The song was written by the band's lead singer, guitarist, and songwriter, John Fogerty.
Bye Bye Bye by *NSYNC. Swedish songwriter and producer Andreas Carlsson wrote this. He also helped write It's Gonna Be Me, as well as That's The Way It Is by Celine Dion and I Want It That Way by The Backstreet Boys. The song is about a guy who has reached the end of his patience in his relationship and is ready to leave.