Kaitlyn Bristowe supported Zac Clark's foundation amid romance rumors. Bristowe, 40, took to Instagram on Wednesday, May 6, to support Clark's Release Foundation Gala, which was honoring Carl Radke after he was given the Keep Going Community Hero Award in April. "Let's freakin go @carlradke," the former Bachelorette captioned the post, which featured Radke's face on a screen. "Inspirational people making an impact without knowing it 🙏," she added. "We love a humble king." The Summer House star, 41, has been candid about his struggles with addiction throughout the years.