Biggest No. 2 Hits Ever: The Top 40 Hot 100 Tunes To Not Hit No. 1

This week, Billboard counts down the "biggest #2 hits ever" - the top 40 Hot 100 songs to not hit #1. Mariah makes this list with "Shake It Off," which spent 6 weeks at #2, peaking on September 10, 2005. The #1 single that week was "We Belong Together." This was only the fifth time in chart history that the same artist occupied the top 2 spots on the Hot 100. See the complete list here.