So Fine by Guns 'n Roses has “Guitar, c’mon!” for the solo.
As for self-reference, breaking the fourth wall, Such Great Heights by the Postal Service has :
“when you scan the radio I hope this song will guide you”
We Are Not Going to Make It by the Presidents of the USA (I think someone else actually wrote it, but they’re the most known for it) is a meta-song about how they aren’t any good. It begins with a failed take, and then makes references to the (in)ability of the drummer and singer using the singer and drummer themselves. There are also the lines:
“we don’t have the talent
and we don’t have the time
and we don’t have the patience
and we don’t know to rhyme”
Kirsty MacColl’s “A New England” - “I was twenty one years when I wrote this song, I’m twenty two now, but I won’t be for long.”
The Pogues’ “Rainy Night in SoHo” - “Now this song is nearly over. We may never find out what it means.”
Sixpence None the Richer’s “Anything” - “This is my forty-fifth depressing tune. I’m looking for money as I clean my artistic womb.”
Sixpence again, with “The Lines of My Earth” - “This is the last song that I’ll write, 'til you tell me otherwise, and it’s because I just don’t feel it. This is the last song, 'til you tell me otherwise, and it’s because I just don’t feel it anymore.”
Or even Billy Bragg’s “A New England” ;). The two lines you quoted are also the first two lines of Paul Simon’s “Leaves That Are Green.”
Willie Nelson’s “Sad Songs and Waltzes” opens with “I’m writing a song all about you,” and laments in the chorus that “though [his] record may say it, no one will play it, 'cause sad songs and waltzes aren’t selling this year.”
Did Billy Bragg write that song? I had no idea it was a cover. MacColl’s version seems pretty gender specific, with lines like, “I put you on a pedestal, you put me on the pill.”
Checking Wikipedia, it appears that she added a verse to the song, which I presume was that one. Bragg now includes it whenever he performs it, in her memory.
I really need to get more of his albums. I’ve only heard Mermaid Avenue to date.
Violent Femmes, Prove my Love
“Third verse, same as the first”
Wings, Silly Love Songs
“You’d think that people would have had enough of silly love songs.
But I look around me and I see it isn’t so.
Some people wanna fill the world with silly love songs.
And what’s wrong with that?
Id like to know, cause here I go again
I love you, I love you,
I love you, I love you,…”