Now in its 19th year, the cultural extravaganza has attracted thousands of people and provided a multi-million boost to the local economy.
Sunday's event in Kelvingrove Park will begin at 1pm with a set by former MSP Pauline McNeill's acoustic band MC4.
Also on the bill is L'Acoustica, John Beattie, Hat Trick and the event will close with a set by Michelle McManus' band Honest Sam and the Dealers.
West End Festival director Michael Dale said: "We are so delighted we could take advantage of the recently refurbished bandstand this year.
"It's been part of the West End's history since 1924 and will soon be part of a bigger celebration in Glasgow - the Commonwealth Games."
Mr Dale thanked the sponsors of tomorrow's event, CC Music and Glasgow Life.
He added: "Let's hope we can carry on using this fantastic open air venue as it once was, for free musical performances.
"It means it's an inclusive space where anyone can attend and enjoy the West End's cultural scene."
The festival's 2014 programme featured 400 events in 80 venues. The highlight was the Mardi Gras Parade on Sunday, June 8, which saw 500 dancers, bands and giant floats snake down Byres Road.
More than 1.1 million visitors have attended the West End Festival since it started in 1996.