Books in the Turns Out I'm An Alien series

''''Last month I found out I was an alien. I also found out that my real parents are slugs and that I''m the rightful heir to a planet full of green slime. This month, things have got really weird. ''''JasperΓÇÖs settling into life with two sets of parents and without two sets of pocket money. Oh, and being an alien. It seems everythingΓÇÖs gone back to normal (well, as normal as normal can be) until Holly drags him to a Harry Handsome concert... and thatΓÇÖs not the worst part. This devious popstar slash alien secret agent seems to be up to something, and it involves brainwashing the entire planet!