Serendipity band member and lead singer Josie Treffy, 15, of South Elgin, sings for her fans at Durty Nellie's in Palatine.

Mark Welsh

Serendipity band members Josie Treffy, 15, of South Elgin, Haley Blomquist, 15, of Elk Grove Village, Daniella Ballarino, 16, of Mount Prospect, and Anneliese Schulz, 15, of Elk Grove Village, with Lizzy Petitt, 15, of Arlington Heights, get ready to hit the stage.

Mark Welsh | Staff Photographer

Serendipity lead singer Josie Treffy, 15, of South Elgin, sings for her fans at Durty Nellie's in Palatine.

Mark Welsh | Staff Photographer

Serendipity lead singer Josie Treffy, 15, of South Elgin sings for her fans at Durty Nellie's in Palatine.

Mark Welsh | Staff Photographer

Serendipity lead singer Josie Treffy, 15, of South Elgin, and other band members talk to the fans before they rock the house at Durty Nellie's in Palatine.

Mark Welsh | Staff Photographer

Serendipity band members Josie Treffy, 15, of South Elgin, Haley Blomquist, 15, of Elk Grove Village, Daniella Ballarino, 16, of Mount Prospect, and Anneliese Schulz, 15, of Elk Grove Village, with Lizzy Petitt, 15, of Arlington Heights play for their fans at Durty Nellie's in Palatine.

Mark Welsh | Staff Photographer

Serendipity band members Josie Treffy, 15, of South Elgin, Haley Blomquist, 15, of Elk Grove Village, Daniella Ballarino, 16, of Mount Prospect, and Anneliese Schulz, 15, of Elk Grove Village, with Lizzy Petitt, 15, of Arlington Heights, sing for fans like Sarah Miklius, 15, of Palatine, center.

Mark Welsh | Staff Photographer

Serendipity band members Josie Treffy, 15, of South Elgin, Haley Blomquist, 15, of Elk Grove Village, Daniella Ballarino, 16, of Mount Prospect, and Anneliese Schulz, 15, of Elk Grove Village, with Lizzy Petitt, 15, of Arlington Heights play for their fans at Durty Nellie's in Palatine.

Mark Welsh | Staff Photographer

Serendipity band members Josie Treffy, 15, of South Elgin, and Anneliese Schulz, 15, of Elk Grove Village, rock the house at Durty Nellie's in Palatine.

Mark Welsh | Staff Photographer

Serendipity band member and lead singer Josie Treffy, 15, of South Elgin, belts out a song as Haley Blomquist, 15, of Elk Grove Village, keeps the beat with bass guitar at Durty Nellie's in Palatine.

Mark Welsh | Staff Photographer

Serendipity lead singer Josie Treffy, 15, of South Elgin, sings for her fans at Durty Nellie's in Palatine.

Mark Welsh | Staff Photographer

Serendipity band members Josie Treffy, 15, of South Elgin, Haley Blomquist, 15, of Elk Grove Village, Daniella Ballarino, 16, of Mount Prospect, and Anneliese Schulz, 15, of Elk Grove Village, with Lizzy Petitt, 15, of Arlington Heights play for their fans at Durty Nellie's in Palatine.

Mark Welsh | Staff Photographer