From his blog, talking about the original Skrull Kill Krew:

The artist for the project was Steve Yeowell, a 2000 AD veteran who had worked with Grant on Zenith. The characters themselves, however, were designed by Brendan McCarthy at Grant’s urging (and after a lukewarm reception to Steve?s initial visualizations.) Throughout most of the process of producing the series, I mainly communicated with Mark [Millar] — not only were we largely on the same wavelength in terms of the sorts of comics we liked, but I had terrible timing when it came to getting in touch with Grant. Like clockwork, every time I called him, I later found out, he had immediately previously taken one consciousness-altering substance or another, and between that and Grant’s accent, and the not-always-wonderful international phone connection, it was virtually impossible for the two of us to understand one another.

Which if anyone hasn’t seen Morrison’s infamous speech at DisInfoCon about magic and being abducted by aliens and other bizarreness that only could come from his brain and his alone, should explain that well, he’s always been like that.

For whoever doesn’t know, Morrison and Millar are two of the most prominent mainstream superhero comic book writers in the business; Morrison mainly at DC, Millar mainly at Marvel.