The Celebrate Fairfax Festival is expected to bring 70,000 people to the Fairfax County Government Center. Guests will find carnival rides, a community market, a silent disco, and fireworks. Also, more than 100 performances on eight stages will be dispersed across the 25-acre site. Artists performing will include 3 Doors Down, Kongos and The Amish Outlaws. Admission is $15 for adults, $5 for youth, and free for children 2 and younger. Visit www.celebratefairfax.com.