F45 Training, a franchisor and operator of fitness centers backed by celeb Mark Wahlberg, went public in July and apparently added some muscle weight in its first earnings report since. The company showed 54 percent growth in revenue, and Adam Gilchrist, the founder and CEO, joined Cheddar to discuss the rapid expansion and what's to come for F45. "I personally won't be surprised if we're bigger than Starbucks one day," he said.