BARS, hotels, restaurants and taxis are all set for a 'significant bounce' over the coming weeks as Live at the Marquee returns to Cork.
Athy pop duo Picture This play two sold out shows at the tent on Friday and Saturday, marking the start of six weeks of live music and comedy in the city.
Grunge veteran Eddie Vedder follows, with the likes of Gavin James, the Coronas, Elton John, Walking on Cars and Jenny Greene all due to perform in Cork in the coming weeks.
It is the twelfth year of the festival, which has become a critical part of the city's business and tourism calendar since the first edition of the concert series took place in 2005.
In all, more than 80,000 music fans are expected to attend events between Friday and the closing gig on July 14, which sees Christy Moore return to Cork.
Lawrence Owens, chief executive of the Cork Business Association, welcomed the boost in trade which can be felt throughout the city centre and surrounding areas.
He said it is an essential component of the business calendar in the city.
"Live at the Marquee is an absolutely wonderful opportunity for the city," Mr Owens said.
"What it brings in terms of footfall, in terms of atmosphere, in terms of interest - it is a real point of interest for Cork and it really makes a huge difference."
Michael Magner, owner of the Vienna Woods hotel, said the Marquee is a 'hugely important economic factor' for city businesses.
For many of the busier events, rooms in and near the city are booked months in advance, with many hotels reliant on the Marquee trade, he added.
"It is a fantastic asset for Cork. We need the Marquee - the hospitality sector has come to rely on it," he said.
"For those six weeks, certain events drive interest and business. It's a busy spell ahead of the traditionally busy months of July and August."
Many of the events draw large numbers of travelling music fans who stay overnight in Cork.
This includes the likes of Elton John and Cliff Richard, though Mr Magner said it is sometimes hard to predict the popular events.
"A few years ago, we were booked solid because a hard rock band were playing just a few gigs in the UK and Ireland so they all travelled here for it.
"It is a hugely important economic factor for the city city - it is a litmus test that proves there is a demand for these types of events all year around."