Visitors to this year’s Welcome Day on Sunday, May 5 are in for a special musical treat.

The Newtown Business Association, which organizes the spring “street fair with flair,” has announced that Kim Sledge Allen, who rose to fame with the 1970s vocal group, Sister Sledge, will not only be joining a guest panel of judges for this year’s Rising Star Talent competition, she also will be taking to the stage herself.

To conclude the competition, Sledge will join the contestants on stage to sing “We Are Family,” the song that rocketed Sister Sledge to the top of the charts in 1979 and won the group a Grammy nomination.

The performance will take place at the end of the competition, but organizers suggest arriving early just in case the contest wraps up earlier than expected.

“You don’t want to miss this. It’s going to be memorable,” said Bill Sheffer, president of the Newtown Business Association, adding that Kim is excited to be a part of this year’s Welcome Day.

According to Sheffer, between 18 and 19 contestants are signed up for the event’s Rising Star competition, which gives up-and-coming local vocal talent a chance to perform for the community.

The contest begins at 12:15 p.m. at the entertainment stage located in front of Fred Beans Family of Dealerships on Sycamore Street.