From pitching investors in their underwear to bucking the so-called Series A Crunch, there’s a lot for entrepreneurs to feel anxious about these days. Luckily, you don’t have to go through it alone. In this video, seven icons of the startup world, including LinkedIn cofounder Reid Hoffman, Instagram’s Kevin Systrom, and Spotify’s Daniel Ek, share their advice and anxieties about starting companies, finding investors, and raising new rounds of capital.