Kelli-Leigh Henry-Glover (born 1985), known simply as Kelli-Leigh, is a British singer and songwriter.

She is best known for being the uncredited vocalist in the UK number one singles "I Got U" by Duke Dumont featuring Jax Jones (cover of Whitney Houston's "My Love Is Your Love") and "I Wanna Feel" by Second City, as well as the credited vocalist in the UK top 10 single "More Than Friends" by James Hype. She has also performed backing vocals for Adele and Leona Lewis among others.

On 23 February 2018, she released her debut solo single "Do You Wanna Be Loved Like This?", through her own record label Music Core Limited.

In 2011, Kelli-Leigh joined Adele's touring band as a backup singer.