Looking for the craziest, most ear-bleedingly intense playlist in the history of testosterone? Prepare to have your mind blown by these 11 seriously hardcore gym tracks! Warning: Not for the faint of heart!

1. *Nsync, "Tearin' Up My Heart"

Via Trans Continental Records, Inc.

2. New Kids On The Block, "you Got It (The Right Stuff)"

Via Sony Bmg Music Entertainment

3. Hanson, "Mmmbop"

Via The Island Def Jam Music Group

4. Backstreet Boys, "I Want It That Way"

Via Zomba Recording Llc

5. 98°, "Give Me Just One Night (Una Noche)"

Via Universal Records

6. Lfo, "Summer Girls"

Via Bmg Entertainment

7. B2K, "Bump, Bump, Bump"

Via Sony Music Entertainment, Inc.

8. One Direction, "Story Of My Life"

Via Sony Music Entertainment, Inc.

9. Boyz Ii Men, "I'll Make Love To You"

Via Motown Record Company L.p.

10. Westlife, "Uptown Girl"

Via Bmg Entertainment

11. Rick Astley, "Never Gonna Give You Up"

Via Pete Waterman Ltd

By The Way...

April Fools!