Chandler Powell is such a supportive boyfriend to Bindi Irwin!
When the wildlife expert took home the Mirror Ball trophy for season 21 of Dancing With the Stars on Tuesday night, the 19-year-old wakeboarder posted a pic of Bindi, her brother, and publicist on Instagram, writing, "CONGRATULATIONS @bindisueirwin !!!!! I've never seen anyone work as hard as you have and it all paid off. Three months without taking a single day off! You deserve this:) #Champion #TeamCrikey."
WATCH: Bindi Irwin Wins 'Dancing With the Stars'! Watch the Emotional Moment
Chandler was part of Bindi's "entourage" this week, showing his support as she went for the big win.
WATCH: 'DWTS' Champ Bindi Irwin Adorably Reveals the Unusual Place Her Trophy Will Be Displayed
In September, Bindi told ET that she's lucky to have Chandler and her family's support.
"I think that love and support is just something we all need in life," she said. "We need those people to keep us going."
WATCH: Bindi Irwin on Boyfriend's Support During 'DWTS': 'I Feel Very, Very Lucky'
When Chandler celebrated a birthday earlier this month, Bindi posted a sweet message to Instagram, writing, "Happy birthday to a person who inspires me every day. A soul who makes me smile no matter where I am in the world, despite any amount of distance."
"Thank you for the endless hugs, late night conversations about life, holding my hand when a loud noise scares me and laughing along with all of my bindi moments," the message continued. "I'm blessed to be a part of your world."
WATCH: Bindi Irwin's Boyfriend Adorably Cheers Her On From 'Dancing With the Stars' Audience
Well, the two have even more reason to celebrate now! Watch the video below to see the strange place Bindi plans to display her trophy.