Bay Area hometown heroes Green Day was the big attraction on Day 1 of the BottleRock Napa Valley festival.

Fans waited (somewhat) patiently all day for the East Bay trio — consisting of vocalist-guitarist Billie Joe Armstrong, bassist Mike Dirnt and with drummer Tré Cool — to take the stage for its headlining set on Friday (May 23).

Finally, right around 8 p.m., these Rodeo rockers hit the festival’s biggie JaM Cellars Stage and delivered a 100-minute-plus set of pop-rock favorites from the band’s multiplatinum-selling catalog.

The Green Day performance — which was something that both fans and organizers had been hoping to see at BottleRock for many years — certainly was a nice way to cap off what had been a very successful opening day to this intensely popular festival.

Other highlights included the hip-hop champions Public Enemy, U.K. buzz band Bad Nerves, Aussie indie-pop crooner Mallrat and Palo Alto singer-songwriter Remi Wolf.

The festival continues through Sunday at the Napa Valley Expo.

Pop titan Justin Timberlake was set to headline on Saturday, with such acts as Benson Boone, Ice Cube, 4 Non Blondes, Kate Hudson (yes, that Kate Hudson) and Lauren Mayberry scheduled to appear earlier in the day.

New England folk-pop singer-songwriter Noah Kahan gets top billing on Sunday, but the docket also includes sets from Goose, Carin Leon, Flo Rida, Khruangbin and — best of all — legendary rock guitarist Robby Krieger from The Doors, among many others.

The music began right around noon on Friday and stretched until to close to 10 p.m. on Friday. During that time, fans were treated to more than two dozen acts, ranging from one of the biggest bands of all time — Green Day, of course — to a plethora of up-and-coming talents.

As far as the latter goes, Bad Nerves certainly made one of the best showings of the day. The U.K act, which melds power-pop, garage rock and indie sounds into an equally abrasive and addictive sound that would please both Television and Strokes fans, barreled through its songs like a freight train about to come off the tracks.

The group has the sound, the look (think U.K. punk-chic) and the energy to go far in this business. So don’t be surprised if you see them back at BottleRock down the line, only playing a bigger stage than the did this time around.

Bad Nerves performed on the smallest of the four main stage areas — the one that is now dubbed the White Claw Stage. It doesn’t get the attention of the bigger stages, but it’s kind of the hidden gem of the festival — where the really cool up-and-coming acts play. Plus, it’s typically less crowded than the others, so you usually walk right up close to the stage without much hassle. Due to these factors, the White Claw has become my favorite of the four stages.

And it certainly was the right place during the 6 o’clock hour, which was when Mallrat — which is the stage name of Aussie singer-songwriter Grace Shaw — was busy charming a relatively small crowd with her electronic indie-pop tunes from her two-album catalog.

As an added bonus, watching Mallrat meant you could skip most of Sublime, which took to the Verizon Stage at the same time and then proceeded to showcase that vocal talent doesn’t always run in the family.

The group is fronted by Jakob Nowell, the son of Brad Nowell, the band’s dearly departed original lead singer. The whole thing makes for a nice story. It does not, however, make for good music.

Remi Wolfe did a much better job with her set, delighting listeners with songs from her back catalog. The Palo Alto native also delivered a stellar (and pretty darn faithful) Fleetwood Mac’s “Dreams.”

The best set I saw all day — not surprisingly — came courtesy of Public Enemy