ORGANISERS were blown away by the success of the first Cooly Rocks On event, which coincides with talks of a festival expansion.

Cooly Rocks On chief executive Bob Newman said the weekend's Revs 'n' Rockabilly event at Pioneer County, Tweed Heads, attracted a considerable crowd of about 1800.

About 900 people attended Revs 'n' Rockabilly in 2013 to check out the classic cars, rockabilly tunes and varied stalls and exhibits.

The increased attendance, along with more than double the number of show cars at "a couple of hundred", has Mr Newman excited for the main festival events from May 30 to June 9.

"The festival is always big, but it's kinda' scary how much it keeps growing and growing," he said.

"If it keeps up like this we can either expand north into Kirra and Currumbin or south further into Tweed Heads.

"So, look out Centro (Tweed), we're coming your way."

Mr Newman said Revs 'n' Rockabilly showcased just how excited people are for the biggest 50s and 60s nostalgia festival in Australia, with families even flying in from across the country.

"It was such a fantastic event, it really was," he said.

"There was about 20 stalls and exhibitions and The Zephyr Project were a real surprise package; they put on a great show.

"It all bodes well for the rest of the festival."

Mr Newman said Cooly Rocks On was getting increasing recognition across Australia and events such as Revs and Rockabilly would only add to the hype.

"We've had people picking up flyers at Toowoomba and I had a few say to me on the weekend 'oh, what's Cooly Rocks On, I've never heard of it?', he said.

"I was proud to say it's the biggest nostalgia festival around."

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