Brands are “testing the waters” with Clubhouse, and it’s pushing other social apps to launch similar features. As audio event app Clubhouse continues to earn buzz, brands are jumping on without “a playbook,” partnering with popular “rooms” to reach listeners. Pizza startup Slice teamed up with the hosts of the “nyu girls roasting tech guys” club to send a free pie to users who “failed to win a date” in their “shoot your shot” room. Square-owned Cash App sponsored a giveaway program with the Black Bitcoin Billionaires club to give away 1 million satoshis (around $515) to users, while the Kool-Aid Man popped up in “a bizarre Clubhouse room” alongside entrepreneurship evangelist Gary Vayerchuk and LA Dodgers player Justin Turner. Meanwhile, Instagram just announced the debut of their new Clubhouse-like “Live Rooms” function where up to four users can simultaneously broadcast together, and engage in talk shows, jam sessions, host Q&As or tutorials, or co-create with other artists. (Adweek, Tubefilter)