Last year, the street-style youth festival was billed as arguably the biggest line-up in the This That's four-year run. But 2019 could be one to top even those heady days of 2018.

Peking Duk - the Canberra electronic duo who have been cooling their heels after finishing their "Biggest Tour Ever" around April, will perform on Saturday at Wickham Park in a one-off festival show, while poster-toppers Wolfmother will perform alongside the Dandy Warhols on Sunday at Scene and Heard.

"On our recent tour it was very clear that Newcastle was more primed than anyone else for some of the bigger tunes with the bigger bass," Reuben Styles of Pekin Duk told the Herald in July. "Everyone was ready to have a good time.

"Coming back to This That was a no-brainer for us."

Since releasing their ARIA No.5 single High in 2014 and winning best Best Dance Release at the ARIA Awards, Peking Duk have continued to drop popular singles like Take Me Over, Stranger and Sugar, featuring Jack River.

From the archive: This That 2017

Wolfmother has top billing at Scene and Heard Festival, which this year expands from its home in Newcastle to travel to Cairns and Brisbane as well.

It comes after a run of gigs across the US, Europe and the Middle East where they played sell-out headline shows and some of the summer season's biggest outdoor festivals, such as Mad Cool in Spain, Lollapalooza in Stockholm, and Hurricane in Germany where they whipped the 50,000-strong crowd into a frenzy (check out the footage on YouTube), before heading home to Australia to play to a packed amphitheatre on the main stage at Byron Bay's Splendour In the Grass.

Photos: All these moments from Scene and Heard 2018

The offers keep rolling in. That's despite the fact Wolfmother's latest album, Victorious, is already three years old.

"Everyone does theorise 'Why are people coming to your shows?'," frontman Andrew Stockdale says with a laugh.

"My theory is that because we have been touring consistently for 15 years, we've developed an international following and we are a lot bigger than we are aware of. I think the songs have become bigger over time - I think Joker and The Thief is up to almost 100 million streams on Spotify. I think the music has really become ingrained in people's lives.

"You don't want to be continually banging on about how big you think you are because it sounds like you're giving a hard-sell, but people are astounded by it. And so am I."

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