Peter Robinson assured readers of Popjustice, the music website he founded in 2000 and continues to run, that the magazine - titled X - was not designed with children in mind.
When quizzed by a forum reader if the Haymarket publication is "only for 8-year-old girls", Robinson responded: "It is not for 8-year-olds, it's aimed at adults.
"I hope that a lot of Popjustice readers will like it, although it's not 'Popjustice the magazine' by any stretch, and there are things that might not make sense if you spend all your time on the bleeding edge of pop discovery."
In an official statement, Robinson added: "X is a music magazine that's totally different to anything we've seen before.
"It boasts the best editorial team of any pop magazine in 20 years so it looks brilliant, feels fresh and is both smart and funny."
He added: "Our remit is pretty broad, so while we may cover The X Factor finalists, we are also the place to come for A-listers, the Top 40 and a variety of our other favourites.
"X will speak to an entire generation of music fans who have grown up without a mainstream music magazine written in a language they understand."
X launched today and is available exclusively at Tesco.