Sarah Harding has 4 Etta Marcus concerts.

Etta Marcus (born 26 January 2001) is an English alternative singer, songwriter and musician from London. Marcus was born and raised in Brixton, South London, where she indulged herself in the area's rich music culture from a young age. Etta began playing musical instruments from a young age, starting piano at the age of eight and her preferred instrument - the guitar, at the age of ten.