Yerbatero

"Yerbatero" by the popular Colombian singer Juanes. The song's in A minor all the way through the second chorus, after which he cranks it up to B minor.
- Mark

Nothing's Going To Stop Us Now

Every once and a while a person secretly loves a song and ends up featuring it on a music theory blog. Sometimes today is that day.
Half step up on the guitar solo from the Mannequin soundtrack.
-trov

If You Leave

I think there are 7 key changes in this one. 
 -trov

What The World Needs Now

I'm happy this is the first key change of the year.
-tony trov

Silhouettes

From the 60s on 6.
-Joanna

For Your Precious Love

Whole step up key change at 1:38.  Otis is the absolute king.  I love Marvin Gaye, David Ruffin, John and Paul, the Beach Boys, Al Green, Sam Cooke, Freddie Mercury, and Wilson Pickett as much as anyone on Earth but Otis Redding's voice is the greatest thing ever.  You can hear him crying.
-Nick

Beating Hearts Baby

Key change is in the outro hook.
-Frank