The 'World of Dance' judge also opened up about Lopez possibly headlining the Super Bowl halftime show.
Julianne Hough is grateful that the two most important men in her life get along great.
The 'Dancing With the Stars' Mirrorball champ is feeling the love from her former partner and others in the 'DWTS' family.
This brother-sister duo made a hilarious discovery!
ET was with Hough as he was making kids smile at Boston Children's Hospital.
ET caught up with Hough making kids smile at Boston Children's Hospital.
Ahead of Sunday's all-new episode, ET has a sneak peek at how the judges spend their time when the cameras aren't rolling.
It's serious business when J.Lo, Derek Hough and Ne-Yo are judging on 'World of Dance,' but backstage, they just wanna have fun!
The singer sat down with ET and opened up on how she would have done as a 'World of Dance' contestant when she was younger.
Plus, Derek Hough and Ne-Yo tell ET what's to come when season 3 of 'World of Dance' returns to NBC on Feb. 26.
ET spoke with Hough about his 'World of Dance' boss, J.Lo.
'I expect nothing different from her, really,' the professional dancer told ET.
ET spoke to the 'Dancing With the Stars' couple on the red carpet at the EW 2018 Pre-Emmy Party in Los Angeles, on Saturday.
In an exclusive sneak peek clip from Wednesday's all-new episode, two dance couples from the Upper Division battle it out in hopes of getting one step closer to the grand prize.