Isa Sanna Mattiasdotter Tengblad (born 25 April 1998), known professionally as simply Isa (stylized as ISA) is a Swedish singer and songwriter. She has participated in Småstjärnorna, which is broadcast on TV4, where she imitated singer Jill Johnson. In the summer of 2012 she released the single "Bomb". She performed the song at Sommarkrysset the same year.