I'll pass on the image, as I know who that is but want to let someone else have a chance.
But mALX, Chrissie Hynde has always been so lean and lanky. In the glam shots taken around the same time as these, she does look more curvy. But that's the propagandist's art, not reality. To sell albums, she's got to look more feminine (as in hourglass shape). But when you see her in concert, she's always been like that. As for the "lump", I think it's more the angle of the shot, the light and the fact that she is leaning way back. It tends to make her pubic symphysis more prominent. But no, it's not a male lump.
And the muscular arms - typical of guitarists, I've seen. Drummers have that too, but bigger.
What I really like about Hynde is that in her concerts, she doesn't cater to the typical male ideal of a feminine musician. She is what she is - a hard-core rocker who just happens to be a woman. She doesn't try to be pretty when she's playing in concert, and that's just awesome. Fearless, if you ask me.
And no, I'm still not posting an answer to your musician! Though I will say he looks downright cute (not a term I'd normally associate with this one) in this shot!