Finding that perfect outfit for a friend's wedding [1] is no easy task. There are unwritten rules in place — no white, nothing too bright or sparkly that'll upstage the bride — and oftentimes, we're left searching (or group-texting different options) up until the very last minute. But before heading to our next set of nuptials [2], we've decided to gather inspiration from a few of our favorite stars. On Saturday, Jessica Alba [3], Katy Perry [4], Kate Hudson [5], and Nicole Richie [6] all attended the Aspen wedding of stylist Jamie Schneider to Nico Mizrahi, and their standout looks offered a variety of tips and tricks anyone could follow.

Read on to see what they wore, then get ready to nail the wedding-guest look — celebrity style.