I love, love, LOVE Sinatra
I love his version of "That's Life" with the soul singers in the background, but when I have those moments when I feel like everything is going wrong, I play "My Way".
https://youtube.com/watch?v=sEbgB6X6S5c
The Jay-Z sampled version from
The Blueprint 2 is hot too. Both versions are good for motivating you in the morning.
https://youtube.com/watch?v=OFSx8VgxJ0k