"Outta My Head" is a song by American actress and singer Sofia Carson and American record producer and songwriter BloodPop. It was written by Carson, Julia Michaels, Justin Tranter and BloodPop, with production handled by BloodPop. The song was released through GENPOP Corporation, Republic and Capitol Records on April 20, 2018. It was Carson's first release since her debut studio album, Ethereal (2017), on January 27, 2017. "Outta My Head" debuted at number 50 on the Billboard Hot 100.
In January 2018, Carson announced that she was officially working on new music following the conclusion of The Ethereal Tour. Across all of March 2018, she continued dropping hints about upcoming music. She then announced the song's official release on April 6, 2018 via her Instagram and Twitter profiles, sharing the song's release date and cover artwork. Julia Michaels and Justin Tranter later revealed on social media that they co-wrote the single. Carson then shared the song's presave link the following day.
The song received generally positive reviews from critics, mainly focused towards the song's production and Carson's vocals.Spencer Kornhaber of The Atlantic called the single "breezy and energetic" and complemented the song's "heavy" base. Maeve McDermott of USA Today opined that the song "brings Carson into the world of EDM effortlessly" and "has a certain flair to it which makes it sound like a complete smash hit in the making".
In the United States, "Outta My Head" debuted with 20,000 downloads on the US Digital Songs Sales chart. It also debuted with number 30 on the US Streaming Songs chart, with 12.8 million streams. It also debuted on various radio charts, with a total of 19.4 million radio audience. This resulted in the song debuting at number 50 on the Billboard Hot 100. The following week, the single debuted and set new peaks on multiple charts, including US Adult Contemporary (No. 34), Adult Top 40 (No. 26), Mainstream Top 40 (No. 15), Rhythmic (No. 39), Dance Club Songs (No. 32) and Hot 100 (No. 43). In Canada, "Outta My Head" charted on the Canadian Hot 100, debuting at number 46 and jumping to number 35 the following week, marking Carson's 8th top 40 song. It received a platinum certification from Music Canada for more than 40,000 downloads in the country.
In Europe, the song debuted within the top twenty of many countries including the United Kingdom, where it debuted at number 16. In Oceania, "Outta My Head" debuted at number 28 in Australia and number 37 in New Zealand.
Due to an increase in sales and streams, "Outta My Head" reached a peak position of number 18 on its ninth week on the chart on the Billboard Hot 100, becoming Carson's 6th top 10 song on the chart. The song also peaked at number 3 on the Mainstream Top 40 chart, number 5 on the Adult Top 40 chart, number 16 on the Adult Contemporary chart and number 18 on the Rhythmic chart. It also became Carson's second song to top the US Dance Club Songs chart. In Canada, the song peaked at number 4, marking Carson's 5th top 10 song on the chart. The song set top ten peaks all across Europe, peaking at number 2 in the United Kingdom and Ireland. In Oceania, the song peaked at number 3 in Australia and number 4 in New Zealand.