At first glance, it looks like a young set of bluegrassers is about to get just a little too big to play a Roanoke ice cream and soda shop.

The Wright Kids, three impossibly young and talented siblings from Franklin County, are scheduled for an appearance Wednesday night on the hit NBC show, “America’s Got Talent.”

That’s great news to Anna Robertson and Brandon Davis, the husband and wife who co-own Pop’s Ice Cream and Soda Shop on Memorial Avenue.

The Wright Kids have been filling their building with fans since they started playing the shop about a year ago.

“They started out coming for ice cream,” Robertson said of the Wrights. “We didn’t know who they were.”

One of the performing siblings, 9-year-old Baruch, already had a share of notoriety. In late 2006, Baruch was one of five grand prize winners in Oscar Meyer’s “Sing the Jingle, Be a Star” contest. The singer/guitar player recorded the old “I wish I were an Oscar Meyer Weiner” song for a nationally broadcast commercial. The Wright family went out to Hollywood with Baruch.

Nowadays, 12-year-old Sage, a singer and fiddler, and bassist/singer Levi, 6, are joining Baruch for more TV time. The home-schooled family is back on the West Coast, rehearsing for the NBC show. In non-televised competition, the Wright Kids have finished in the show’s top 40. On Wednesday, the group will be performing live, hoping for viewers’ votes to help them move on in the competition.

The Wright Kids are the second act of youthful Franklin County bluegrassers to get network television exposure in the past year. The other group, The Clark Brothers, won on Fox’s “The Next Great American Band” in December. Both shows are owned in part by “American Idol” judge Simon Cowell.

So far, “America’s Got Talent” has broadcast only quick, teasing snippets of Wright footage over the weeks, while filling many other minutes with something akin to a circus sideshow of self-deluded and other odd folk doing their thing.

The children said they have had a great experience, and the judges — David Hasselhoff, Sharon Osbourne and Piers Morgan — have been complimentary.

All the attention and the potential for fame won’t stop them from playing shows at Pop’s, they said in a phone interview on Friday. The Wrights, already regional bluegrass festival veterans, said they have too much love for their pay — the shop’s grilled cheese sandwiches and ice creams. (Just in case you think that Pop’s is taking advantage of the kids, note that admission is free.) Sage constantly mixes flavors and said she has her own favorite treat, dark chocolate ice cream with cherry soda.

The Wrights respond in kind. Davis and Robertson said they’ve watched the show while munching on the home-canned “million dollar” pickles that the Wrights made for them.

The relationship began one day last year, when family members walked into the shop for ice creams after coming to Roanoke to buy a new guitar. Father Barry saw some P.A. equipment in the shop — that started a conversation that ended with the kids asking for and receiving an audition, Davis said.

“They played two songs, and we were just knocked out,” Robertson said.

The show is not all about Baruch. Sage has continued to develop a three-octave range that “brings goose bumps,” Robertson said. The youngest, banjo player Levi, has added upright bass to his skill set — he has a one-quarter size bass that he’s playing on the show, Barry Wright said. Pop’s co-owner Davis, himself an upright bass man, said he was impressed.

The children have continued to improve, and audience members are “shoulder-to-shoulder” when the Wright Kids play Pop’s, Robertson said.

“Each time,” she said, “it’s somehow better.”

Barry Wright said the family misses home, but is looking forward to showing its stuff.

“Everyone’s been very supportive at home,” Barry Wright said. “And it’s going to be live, so we’re kind of in touch.”