[Photo credit: dirty little bitch/YouTube]

Lollapalooza is 20 years strong and has no plans to slow down any time soon.

This past weekend, the festival kicked off its 2017 four-day run at Grant Park in Chicago, Illinois. Of course there was an awesome lineup featuring Blink-182, Machine Gun Kelly and more, but there were also a ton of surprises (and not-so-surprises) that you may have missed. Lucky you, we rounded them all up for you. Here's some of the highlights of Lollapalooza 2017!

Read more: Music festival featuring Paramore, PVRIS, Chance the Rapper, more canceled

1. Liam Gallagher has a diva moment

Early on during the first day of Lolla, Oasis' Liam Gallagher cut his set short and fans were not pleased. 

Read more: Liam Gallagher storms off stage 20 minutes into Lollapalooza set, crowd is pissed

Gallagher explained the incident away in a tweet blaming it on his voice, however.

2. Mass evacuation on Friday

Unfortunately, Liam Gallagher's set wasn't the only one cut short on Thursday. Severe weather forced the entire festival to evacuate—just minutes into headliners Lorde and Muse's sets.

Read more: 22,000 fans evacuated after stage fire at Tomorrowland festival

Like Gallagher and both headliners were left “gutted”:

3. The Killers making up for it on Friday!

To help heal the wounds of fans still hurt by the abbreviated Muse set, the Killers did a stunning cover of Muse's “Starlight.” 

Read more: The Killers’ Brandon Flowers talks negativity at band’s start: “It came from a place of insecurity”

The band also covered Smashing Pumpkins' “Disarm” and Joy Division's “Shadowplay” during their set. Watch the full set right here.

4. An incredible headlining set from Blink-182

While the Killers were covering Muse, Blink-182 were on the other side of the park absolute crushing their headline set, complete with fireworks. Watch their opening song “Feeling This” below, and check out the whole performance here!

Read more: Blink-182’s already talking about what their next album will sound like

5. The cell phone thief of Lollapalooza is caught

According to NBC Chicago, the Chicago PD recovered all the stolen items from a thief who reportedly stole 60 phones over the weekend! Not exactly music news, but we'd definitely watch this episode of Law & Order.