Derek Hough and Chelsie Hightower - Paso Doble | Mark Ballas on the guitar

Chelsie Hightower at "Dancing With The Stars" Derek Hough And Mark Ballas Birthday Party

Chelsie Hightower & Derek Hough - Acoustic Paso Doble

Chelsie Hightower & Derek Hough - Acoustic Paso Doble

Mark Ballas Interview at "Dancing With The Stars" Derek Hough & Mark Ballas Bday Party

Mark Ballas & Lacey Schwimmer at DWTS Derek Hough & Mark Ballas Bday Party

Ty Murray & Chelsie Hightower - Paso Doble

Romeo & Chelsie Hightower - Paso Doble

Roshon Fegan, Chelsie Hightower & Sasha Farber - Paso Doble

Bindi Irwin, Derek Hough & Mark Ballas - Jazz

Chelsie Hightower & Derek Hough - Acoustic Paso Doble

Roshon Fegan, Chelsie Hightower & Sasha Farber - Paso Doble

DWTS 2009 - (18) Derek Hough & Mark Ballas Sing

Katherine Jenkins on Periscope LIVE stream talks DWTS 10th Anniversary, Mark Ballas & Derek Hough

Cheryl Burke at "Dancing With The Stars" Derek Hough And Mark Ballas Birthday Party

Derek Hough and Mark Ballas celebrate their birthday at Canon Club - June 13, 2016 (Snapchat post)

Evan Lysacek Interview at "Dancing With The Stars" Derek Hough And Mark Ballas Birthday

Anna Trebunskaya Interview at "Dancing With The Stars" Derek Hough And Mark Ballas Birthday Party

Derek Hough via Mark Ballas' snapchat - Bowling night - February 5, 2016

Stephen Colletti on Ideal Date, on One Tree Hill at DWTS Derek Hough & Mark Ballas Birthday Party

Behind The Scenes Making Mark Ballas Video For His Debut Single 'Get My Name' Directed By Derek Hough