As I walked into The Warfield in San Francisco on March 16, I knew that I was in for an amazing night.

The venue was packed with fans waiting to see alternative rock bands Nico Vega, Atlas Genius and Imagine Dragons on their sold-out Night Visions Tour.

First, Nico Vega took the stage. The band consists of lead singer Aja Volkman (who is married to Imagine Dragons frontman Dan Reynolds), guitarist Rich Koeler, drummer Dan Epand and bassist Jamila Weaver. After independently releasing an EP (“Chooseyourwordspoorly”), Nico Vega landed a recording contract with MySpace Records and recorded their first full album, “Nico Vega,” which was released in 2009. More recently, the band released an EP, “Fury Oh Fury,” in Feb. 2013.

Overall, Nico Vega performed well for an opening act. The band was able to get the crowded involved, thanks to Volkman’s vocal range. Volkman went from sweet to total rocker within seconds. Her sound was a mix between Janis Joplin and Stevie Nicks, and the band’s best performance was definitely “Beast” because of Volkman’s strong vocals.

After a few songs from the opening act, Australian band Atlas Genius took the stage. Atlas Genius consists of three brothers: lead vocalist and guitarist Keith Jeffery, drummer Michael Jeffery, and bassist Steven Jeffery. Their friend, Darren Sell, plays the keyboard for the band.

The Jeffery brothers and Sell started out their music career by building a studio where they could write and record songs. They began by covering songs by bands such as The Police, The Beatles and The Rolling Stones to pay the bills. It was at their studio in Adelaide, Australia where the band produced their first song, “Trojans.”

After the band decided to take a break and focus on school for awhile, “Trojans” was discovered by multiple record labels, and in April of 2012 the band signed with Warner Bros. Records.

Their first EP, “Through the Glass,” was released in June 2012 and includes original demos of the band’s most recent hits, “Symptoms,” “Trojans” and “Back Seat.”

Atlas Genius opened with “Symptoms,” and continued to play most of the songs off of their first album, “When It Was Now,” which was released on Feb. 19. The band closed with their first single and most popular song, “Trojans.”

I was blown away by Atlas Genius’ performance. They sounded just like their record, and Keith Jeffery had so much energy that the crowd couldn’t help but jump up and down to the beat. The band wove beautiful instrumental pieces into their songs that made me appreciate their music even more. Sell had a couple of solos throughout the band’s performance and was extremely talented on the keyboard. I’m usually not one for long instrumentals, but Atlas Genius made them interesting and upbeat.

After Atlas Genius performed, Imagine Dragons came on stage. Imagine Dragons consists of lead vocalist Reynolds, guitarist Wayne Sermon, bassist Ben McKee and drummer Daniel Platzman.

The band formed when Sermon met Reynolds through a mutual friend. They were both very serious about starting their music career, and they moved to Las Vegas to pursue their passion.

Sermon then called McKee to join him and Reynolds, and Platzman was later added. After releasing three EPs (“Imagine Dragons,” “Hell and Silence,” “It’s Time”) independently by 2012, the band began touring.

Soon after, Imagine Dragons released another EP, “Continued Silence,” which also included a newer version their most popular song, “It’s Time.”

In Sept. 2012, the band’s first album, “Night Visions,” was released. “Night Visions” reached number one on the Billboard Alternative and Rock Album charts. The song “Radioactive” off of “Night Visions” also reached number one on Billboard’s Alternative Songs chart.

After much anticipation, Imagine Dragons was ready to perform. They set the scene with Alice in Wonderland-esque tree cutouts and a moon shaped screen in the background, which resembled their “Night Visions” album cover.

The band started off their set with “Round and Round.” Reynolds was bouncing around the stage and had tons of energy. There were also some huge drums on stage that Reynolds would play, which only added to his vibrant performance. Imagine Dragons continued to play most of the songs off of their album “Night Visions.” The most noteworthy performances were “Hear Me,” “Demons,” “Underdog,” and “Radioactive.”

After having been an avid concert-goer for seven years, I can honestly say that I have never heard a crowd get as loud as they did when Imagine Dragons played “Radioactive.” Not only is the song a popular one, but the band put on an amazing performance. There were hundreds of flashing lights, and Reynolds’ had the most intense energy I have ever seen from an artist.

In the middle of the song there was an instrumental that included Reynolds and McKee playing on either side of a huge drum. Once the instrumental ended, and Reynolds picked up the chorus of “Radioactive,” the crowd went crazy. Their performance of “Radioactive” was by far the best live performance I have ever seen.

Imagine Dragons also performed “Underdog” very well and added to the song’s fun, catchy nature by throwing different colored glowing balloons into the crowd.

The band closed with their most popular hit, “It’s Time.” The performance was an okay one, but the crowd was definitely more into “Radioactive.” The only complaint I have about Imagine Dragons’ set is that I wish they had put as much effort into their signature song, “It’s Time” as they did into “Radioactive.”

After much cheering from the crowd, the band came back for an encore and played “Nothing Left to Say.” I thought this song was a good choice because it was one of their slower songs and it gave the crowd a chance to relax.

Overall, the Night Visions Tour was definitely worth the money and bart ride it took to get there. I would definitely see both Atlas Genius and Imagine Dragons again because of their amazing stage presence and sound.

If you missed the concert, don’t fret because Atlas Genius will be coming back to San Francisco on their headlining tour this May, and Imagine Dragons will be performing at America’s Cup Pavilion in San Francisco on May 31.