Nick Jonas gets an earful from his brothers Kevin (left) and Joe, in a PR photo from 2005.

Nick Jonas gets an earful from his brothers Kevin (left) and Joe, in a PR photo from 2005. Download

Sony BMG
Flash forward 11 years, Nick Jonas performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas. 

Flash forward 11 years, Nick Jonas performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas.  Download

Ting Shen/Staff Photographer
Demi Lovato during a scene from the 2008 film "Camp Rock," in a photo provided by ABC/Disney Channel. In the show, the cabins, lake and woodsy setting of Camp Rock were like many real-life summer getaways, but the campers were all aspiring rock stars with flashy wardrobes. 

Demi Lovato during a scene from the 2008 film "Camp Rock," in a photo provided by ABC/Disney Channel. In the show, the cabins, lake and woodsy setting of Camp Rock were like many real-life summer getaways, but the campers were all aspiring rock stars with flashy wardrobes.  Download

John Medland/Disney Channel
Flash forward 8 years, Demi Lovato performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas. (Ting Shen/The Dallas Morning News)

Flash forward 8 years, Demi Lovato performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas. (Ting Shen/The Dallas Morning News) Download

Ting Shen/Staff Photographer
Some of Demi's evolving looks from 2008 to now.

Some of Demi's evolving looks from 2008 to now. Download

In this image released by the Disney Channel, Demi Lovato and The Jonas Brothers (from left,  Nick, Joe and Kevin) star in "Camp Rock",  the 2008 Disney Channel original movie.

In this image released by the Disney Channel, Demi Lovato and The Jonas Brothers (from left, Nick, Joe and Kevin) star in "Camp Rock", the 2008 Disney Channel original movie. Download

BOB D'AMICO/Disney Channel
Flash forward 8 years, child stars Nick Jonas and Demi Lovato attend the 27th Annual GLAAD Media Awards on April 2, 2016 at the Beverly Hilton Hotel in Beverly Hills, Calif. The two launched their road show "Future Now" in June. 

Flash forward 8 years, child stars Nick Jonas and Demi Lovato attend the 27th Annual GLAAD Media Awards on April 2, 2016 at the Beverly Hilton Hotel in Beverly Hills, Calif. The two launched their road show "Future Now" in June.  Download

Lionel Hahn/TNS
Demi Lovato and Nick Jonas enter an event tent for the meet and greet at Allen Premium Outlets on Sept. 12, 2016 in Allen, Texas. 

Demi Lovato and Nick Jonas enter an event tent for the meet and greet at Allen Premium Outlets on Sept. 12, 2016 in Allen, Texas.  Download

Ting Shen/Staff Photographer
Demi Lovato performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas. 

Demi Lovato performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas.  Download

Ting Shen/Staff Photographer
Demi Lovato performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas. 

Demi Lovato performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas.  Download

Ting Shen/Staff Photographer
Demi Lovato performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas. 

Demi Lovato performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas.  Download

Ting Shen/Staff Photographer
Demi Lovato performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas. 

Demi Lovato performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas.  Download

Ting Shen/Staff Photographer
Demi Lovato performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas. 

Demi Lovato performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas.  Download

Ting Shen/Staff Photographer
Nick Jonas performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas. 

Nick Jonas performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas.  Download

Ting Shen/Staff Photographer
Nick Jonas performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas. 

Nick Jonas performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas.  Download

Ting Shen/Staff Photographer
Nick Jonas performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas.

Nick Jonas performs on stage during the Future Now Tour at American Airlines Center on Sept. 12, 2016 in Dallas. Download

Ting Shen/Staff Photographer
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