Did you think that Justin Timberlake and Jimmy Fallon were the most entertaining Bee Gees imitators out there?

OK, maybe they are, but if you want your Bee Gees experience as serious and true-to-the-Brothers-Gibb as possible, Bee Gees Gold is a good bet.

This band is led by John Acosta as Barry Gibb, alongside Eric Sean as Robin and Peter Sprague as Maurice. Watching videos of them online will make you a believer.

Bee Gees Gold is playing the Kate this weekend. The tribute group has so many great songs to include in its setlist, from “To Love Somebody” to “Nights on Broadway” to “Stayin’ Alive.” Here’s how popular this offering is: As of press time, Saturday’s show was sold out, and Sunday’s had just one ticket still available.

Bee Gees Gold, 8 p.m. Sat. and 3 p.m. Sun., Katharine Hepburn Cultural Arts Center, 300 Main St., Old Saybrook; $51; (860) 510-0453.