Mariah wrote the song “Once In A Lifetime” for the Pepsi Cool Tones and Motorola Phones promotion during the summer of 2006. “It was a great creative outlet because musically I could do things here that I would never think to do for one of my albums,” Mariah said. “This was a great idea by Pepsi, and I'm happy to be a part of it.”
When we were together everything just felt right
It seemed we were destined to last for a lifetime
I wasn't prepared to be left standing up here in tears
Don't you know I can't help thinking that life
Will never be the same
Time goes by
But my love for you never dies
Once in a lifetime