Most shows are lucky if they manage to create one memorable theme song.

And it all came about from Rebecca’s (Rachel Bloom) evolution.

“That started the seed of: We need a new theme song.”

So, season 2 delivered a new theme song.

As did seasons 3 and 4.

The song was also helping to tell Rebecca’s story, which started with good old fashioned denial.

Season 2

The look of the season 2 theme was almost very different.

“There were shopping bags.

The whole concept was a parody ofThat Girl.”

But when Dolgen pointed out thatThe Maria Bamford Showhad beaten them to that idea, they pivoted.

(Although the lyrics remained the same.)

“I sent Adam the lyrics.

And Adam then turned it around.”

What started as one idea morphed into something else entirely.

And then it morphed a couple more times.

“Season 3 was always going to be our bigFatal Attractionseason.

“And then, we came up with this song, ‘I Hope Your Penis Falls Off.’

That was the theme song.

But by episode 4, ourFatal Attractionplotline was dropped.

That’s when all hell broke loose, because we all had different ideas.”

“Seasons 2 and 3 aren’t TV theme song parodies.

They’re just song parodies,” Bloom says.

“So, I have fondnesses for both 1 and 4.”

Specifically, season 4 was a parody of television themes likeFull House.

“We wanted it to be generally upbeat and almost ’90s,” Bloom says.