She doesn't yet know why the music suddenly stopped. You'll see the most romantic proposal!

<p><span>This was a magical moment we would both like to share with the world. Allison and I booked a Microsoft commercial together earlier this year directed by Jon Chu and choreograhed by Jamal Sims and Chris Scott. Through much plotting and planning we figured out how I could propose to Allison on set.&nbsp;</span></p>