I thought it is a melancholic song, but I was wrong, this song is so childishly fun and cheerful!
I think the guy in the Tintin mask just looks plain creepy.
Creepy indeed, at a glance. But I think I'll admit that I am the first person in this thread that say the Tintin mask is actually cute. And handy, too! The mask would always give me nice and simple cosplay prop, if only I could have one though XD.
Anyway, a little far off this thread, I found another Tintin-related song somewhere in the net, titled "Tintin" by Els Caterres. Unlike Comme Tintin, this song has fewer relations to Tintiniverse itself (with the only reference to Tintin and Snowy in the refrain), not to mention that the lyrics are rather... mature(?) at the least, if not sleazy or other.