Lovato's ex-boyfriend praised the singer at the march on Saturday, as well as shared his own personal connection to gun violence and why he's willing to speak out.
The 37-year-old actor is committed to helping others achieve their American Dream.
ET sat down with the 25-year-old singer to talk about her new YouTube documentary, 'Then and Now.'
The 25-year-old singer also got candid about her love life while promoting her new YouTube documentary, 'Demi Lovato: Simply Complicated,' which premieres Oct. 17.
The exes dated for six years.
ET spoke with the actor at the Hand in Hand hurricane relief telethon on Tuesday.
The 'That's 70's Show' alum was one of dozens of stars who came out for the multi-city telethon that raised money for hurricanes Harvey and Irma.
The guys from 'NCIS' are keeping it real talking about their covers for the new CBS Watch Magazine.
The pair was photographed leaving Tao in Hollywood, California, on Saturday.
The 37-year-old actor is 14 years older than the fashion and beauty vlogger.
The friendly exes smiled, laughed and even posed for photos together!
Despite calling it quits a year ago, the former Hollywood couple remains as close as ever.
The stars shared personal stories in support of immigration and freedom of expression at UTA event.
He also gushed about his standout year career-wise.
