Roots of Leona Lewis

The Shapeshifters is the current alias of British house producer Simon Marlin and a former duo comprising Marlin and Swedish producer Max Reich, from Gothenburg. The Shapeshifters have been signed to Defected Records since 2008, and the duo were previously signed to Positiva. They are best known for their debut single "Lola's Theme", which went to No. 1 on the UK Singles Chart in July 2004.

Tim Bergling, known professionally as Avicii, was a Swedish DJ, remixer, and record producer. His musical style was primarily pop-oriented house music, and he is an influence on many artists. Several music publications have credited Avicii as one of the DJs who took electronic music to Top 40 radio in the early 2010s. He is considered one of the most popular and successful electronic dance music (EDM) genre artists of all time.

Calum Scott is an English singer and songwriter. He rose to prominence in April 2015 after competing on the ITV talent contest Britain's Got Talent, where he performed a cover of Robyn's hit "Dancing on My Own" and earned a Golden Buzzer from Simon Cowell. After placing sixth in the contest, he released his own version of the song as a single the following year, which peaked at number two on the UK singles chart and became Britain's best-selling single of summer 2016.

Gabriella Michelle Henderson, is an English singer and songwriter. She rose to prominence after competing in the ninth series of The X Factor UK in 2012 finishing in sixth place. She signed with Syco Music shortly after, and released her debut studio album, Chapter One (2014), which reached number one in the UK. The album spawned the chart-topping single "Ghost", as well as the top 20 singles "Glow" and "Yours". She went on a four-year hiatus in 2015, and released her second studio album, Everything I Didn't Say, in 2022. It became her second top 10 album in the UK.

Biagio Antonacci is an Italian singer and songwriter.

"Rolling in the Deep" is a song by English singer-songwriter Adele from her second studio album, 21 (2011). It is the lead single and opening track on the album. The song was written by Adele and Paul Epworth. The singer herself describes it as a "dark blues-y gospel disco tune". In 2011, it was reportedly the biggest crossover hit in the United States since 1985; "Rolling in the Deep" gained radio airplay from many different radio formats. It was released on 29 November 2010 as the lead single from 21 in digital download format. The lyrics describe the emotions of a scorned lover.