[4] "T-Shirt", Shontelle's debut single, was released in July 2008 and reached number thirty-six on the US Billboard Hot 100, becoming a moderate hit.

Shontelle was also Beyoncé's opening act for her I Am... World Tour from May to June 2009 during the British leg.

[7] Shontelle Also began writing songs for many artists in Barbados including the 2007 crop over hit Roll It Gyal for the Queen of Soca Alison Hinds and the 2018 crop over hit Winners for Shanta Prince.

She performed at a high school prom in New York City in June 2009, but first she led three students in a competition to design the dress that singer Kat DeLuna, the headliner, would wear at the Ultimate Prom concert.

[9] Shontelle stated that the album would be experimental and that she wanted to change her original sound for the record.

[13] Later that year Shontelle would co-write Rihanna's song "Man Down" from her fifth studio album, Loud (2010).

[15] The lead single from the album, "Impossible", was released in February 2010 for digital download, but failed to garner success until May of that year, when it debuted on the Billboard Hot 100.

Shontelle played at GUMBO @ The Canal Room in New York City on 15 July 2011, where she revealed news about an upcoming single and third studio album.

The lead single from the upcoming album is called "Reflection" and it premiered on SoundCloud in September 2011.

On 29 October 2021, Shontelle released the lead single "Sanctify" off her upcoming untilted EP.

She used her talent to help raise funds for patients with Alzheimer's through the Together for Care concert,[23] girl's education for She's the First,[24] VH1 Save the Music Foundation,[25] and breast cancer research charities.