WHATELY — Alumni of a world-famous a cappella group will make their way to Whately on Saturday night for a free concert.

Members of the 1970s iteration of The Harvard Krokodiloes, or the Kroks, will perform at Whately Town Hall, 194 Chestnut Plain Road, starting at 7 p.m.

It will be the first performance in town for the prestigious a capella group of Harvard University. Throughout its 77-year history, the group has performed around the world and has featured members who have gone on to be authors, Emmy award winners and a White House counsel appointee.

“For me, it’s exciting to show the place I’ve come to call home,” said George Colt, a Kroks member and author who has lived in Whately for the last 22 years.

The Harvard Krokodiloes is Harvard’s oldest a capella singing group, having formed in 1946. The name comes from a stuffed crocodile mounted on the wall of the bar where they first formed and the spelling comes from the ancient Greek work for crocodile, krokodilos.

Colt attended Harvard in the 1970s and joined the Kroks following an event that showcased the student groups on campus. He was “amazed” by the performance they put on.

From that moment, Colt joined the a cappella group and forged lifelong connections that were further strengthened in 1996 at the group’s 50th anniversary celebration. Nowadays, Colt, 69, said the group he performed with meets up a handful of times each year to “rehearse, reminisce, have a few beers and do a concert.”

“It’s been a way to keep together our friendships and our musical life, which are so closely intertwined,” Colt said. “It’s a way to push forward in our friendships and our music. … If you have music, you’re creating something anew, you’re continuing to move forward and share an activity you care about.”

The magic of it all, he said, is the common ground found in music. He’s an author, while his friends have a range of other professions, such as lawyers and a federal judge.

“We all have done different things in our lives. … A few people have made their living in music,” Colt said. “It’s all different walks of life coming together and blending.”

He expects 13 members of the group to perform. They’ll run through several different genres of music, including songs by George Gershwin and Cole Porter, as well as performances of “Somewhere Over the Rainbow” and other classic songs. The show will be about an hour long.

Chris Larabee can be reached at clarabee@recorder.com or 413-930-4081.