At a Glance
- Mattie Westbrouck’s TikTok cheering on their sister hit 14.5 million views
- The Boise State game-day clip shows the sibling’s emotional reaction
- Post caption: “PROOF showing up matters at EVERY age”
- Why it matters: A simple act of support becomes a viral reminder of family love
A single TikTok post is reminding millions that presence can be the most powerful gift. Mattie Westbrouck, known on the platform as @westbrouck, uploaded a 21-second clip that has now topped 14.5 million views after capturing their sister’s pure joy at a Boise State football game.
The Video That Stopped the Scroll
The footage, posted January 2026, opens with Westbrouck, 25, standing in the stadium stands wearing a Boise State crewneck. They hold a handmade poster featuring their sister’s face, lifting it high as the crowd roars. When the cheerleader spots Mattie, her reaction is instant: she jumps up and down, waving frantically, her smile visible from across the field.
The video ends with a selfie shot of the siblings side-by-side, cheeks pressed together, both beaming.
Key moments captured:
- Sister’s double-take when she spots the sign
- Her excited jumping while still in formation
- Mattie’s proud laugh as they lower the poster
- Final selfie snap with the stadium lights behind them
Caption That Sealed the Moment
“PROOF showing up matters at EVERY age,” Westbrouck typed over the clip. In the text overlay they added, “even though this was my last time watching you cheer doesn’t mean i’m ever going to stop cheering you on @hannie 💌🧸🍒🪩 im so proud of you kid. 💙”
The message signals the end of the sister’s cheer season, making Mattie’s presence at this game the final opportunity to watch her perform live.
Reaction Flood
Commenters quickly filled the feed with tearful emojis and personal stories.
- “We love showing up for our friends and family. It truly means so much,” one user wrote.
- “the way she lit up seeing you there like omg cuties,” added another.
- “Showing up always matters… showing up for my siblings is the most important thing for me,” a third person shared.
- “Darn it Mattie you made me cry 😭,” a different viewer replied.
The tally now sits at 14.5 million views, climbing by the hour as the clip is stitched and shared across platforms.
Why One Game Mattered
Boise State’s blue turf served as the backdrop, but the location could have been anywhere. The viral element is the universal feeling of being seen by the people who matter most. Westbrouck’s simple act-printing a photo, taping it to cardboard, and holding it high-cost little yet delivered a memory now frozen in pixels and replayed millions of times.
For the sister, it was the last game of her season, a milestone Mattie refused to miss. The poster’s message never appears on camera; the joy on her face says everything.
The Power of Showing Up
No sponsorships, no brand deals, no choreographed dance-just two siblings sharing a moment that happens to resonate. The video’s success underlines a truth often buried under curated feeds: raw, real-time support still cuts through the noise.
According to News Of Losangeles, the clip continues to rack up likes, shares, and duets, with teachers, parents, and older siblings tagging one another to promise similar attendance at upcoming games, recitals, and graduations.
Key Takeaways
- A 21-second TikTok of Mattie Westbrouck supporting their sister has earned 14.5 million views
- The Boise State game-day clip proves small gestures can carry massive emotional weight
- Commenters are pledging to show up for their own siblings after watching the viral moment
