On February 18, 2015, after Pierce's departure the remaining members announced on their official YouTube channel that they had changed their name to Hey Violet.
On March 19, 2015, they released their new single "This Is Why".
On March 24, it was confirmed that they would be signed to Hi or Hey Records, 5 Seconds of Summer's partnership of Capitol Records.
On June 15, Hey Violet announced that they would be releasing their first EP I Can Feel It in July.
The band were the opening support act for 5 Seconds of Summer on the European and North American legs of their Rock Out with Your Socks Out Tour.
In both the European and USA/Canadian legs of the tour, they played free acoustic sets outside the show venues for fans.
The band also went on its own European headlining tour in winter 2015.
It was during this tour that Rena Lovelis stopped playing the bass to focus on her vocals, and a temporary bassist was brought on.
They continued to open for 5SOS on the North American leg of their 2016 Sounds Live Feels Live World Tour.
During this tour, new touring bassist Iain Shipp was introduced, and was later made an official member of the band in September 2016.
Their second EP Brand New Moves was released in August 2016, with follow-up single "Guys My Age" in September 2016.
Hey Violet toured radio stations in fall 2016 and was on the lineup for a number of Jingle Ball shows promoting their EP and the single "Guys My Age".

In March 2017, "Break My Heart" was released as the second single from their second studio album, From the Outside.
The album was released on June 16, 2017.

On August 31, 2017, Miller announced her departure from the band via the group's social media accounts, stating that touring had become "grueling".
On February 18, 2015, after Pierce's departure the remaining members announced on their official YouTube channel that they had changed their name to Hey Violet. On March 19, 2015, they released their new single "This Is Why". On March 24, it was confirmed that they would be signed to Hi or Hey Records, 5 Seconds of Summer's partnership of Capitol Records. On June 15, Hey Violet announced that they would be releasing their first EP I Can Feel It in July. The band were the opening support act for 5 Seconds of Summer on the European and North American legs of their Rock Out with Your Socks Out Tour. In both the European and USA/Canadian legs of the tour, they played free acoustic sets outside the show venues for fans. The band also went on its own European headlining tour in winter 2015. It was during this tour that Rena Lovelis stopped playing the bass to focus on her vocals, and a temporary bassist was brought on. They continued to open for 5SOS on the North American leg of their 2016 Sounds Live Feels Live World Tour. During this tour, new touring bassist Iain Shipp was introduced, and was later made an official member of the band in September 2016. Their second EP Brand New Moves was released in August 2016, with follow-up single "Guys My Age" in September 2016. Hey Violet toured radio stations in fall 2016 and was on the lineup for a number of Jingle Ball shows promoting their EP and the single "Guys My Age".
In March 2017, "Break My Heart" was released as the second single from their second studio album, From the Outside. The album was released on June 16, 2017.
On August 31, 2017, Miller announced her departure from the band via the group's social media accounts, stating that touring had become "grueling".
Hey Violet