My favorite band is The Story So Far! It's a pop punk band.
I don't know anything about them.  are they very popular?
Not as much, they're signed in with Pure Noise  Records and have released 3 albums so far.
What is some of their songs?
Clairvoyant for example! Also, Pink's cover called Loro.
Oh they sing with Pink?
"What You Don't See" and "Songs Of" EP (2011–2014).
Barrett Records released a split of The Story So Far and Morgan Foster in May 2011. Pure Noise released the band's debut album "Under Soil and Dirt" in June. On March 26, 2013, they released their second studio album, "What You Don't See", which debuted at number 46 on the "Billboard" 200 chart in the U.S. They have also released a split with Stick to Your Guns on
June 18. This split contains one new original song, Clairvoyant, and a cover of Pinback's song "Loro". The band was featured on the cover of Alternative Press' March 2013 issue "100 Bands You Need to Know." The band played the entire Warped Tour 2014 on the main stage.
On April 24, 2014, The Story So Far announced they would be releasing "Songs Of", an acoustic EP on June 17 through Pure Noise. The record contains some acoustic versions of previous songs