Related Information for Grand Finale 1. Portugese indie rock band2. Pop/Rock from Mundelein, IL1. Grand Finale is a Portuguese indie rock band formed in 2008.Mr. Jony - Guitar Thiago Alves - Drums J - Bass David Jackson - Vocals2. Grand Finale is a Pop/Rock band from Lake County, IL. They've released two singles called "Did You Forget" and "How Was Your Sleep", and most recently an EP called "Summer Knights". Summer Knights:.. read more