Aisa Khan Sampson-Spencer (born 1 April 1992), known professionally as Merky ACE, is a British grime MC, rapper, songwriter and record producer from Lewisham, South London.

[4][5] In 2012, Merky ACE recorded features for Dizzee Rascal's Dirtee TV 2 mixtape which was released on Christmas of that year.

[11] In late 2015, Merky ACE formed a new crew, Tizzy Gang alongside Tre Mission and Cadell; following this news, Family Tree disbanded shortly after in early 2016.

[12][13] Merky was a joint executive producer of Tizzy Gang's debut collaborative album, Opps Next Door Vol.

On 5 June 2020, Merky marked his first collaboration with fellow grime MC Capo Lee with a joint project, the Clash of the Pagans EP.