Katy Perry has been forced to put plans to build on her comedy resume on hold because she's too busy masterminding her music career.

The I Kissed A Girl hitmaker reveals she would love to become a regular on U.S. sketch show Saturday Night Live (SNL), which she has hosted twice before, but her schedule is already too hectic to commit to anything else.

The singer, who was previously married to British funnyman Russell Brand, will serve as the musical guest on the show this weekend (12Oct13), alongside Hollywood star Bruce Willis as host, but she doubts she will appear in any skits.

She tells talk show host Jimmy Fallon, a former SNL regular, "I wish I could do some comedy sketches because I love being around comedians, I love the air, I love the kind of craziness... but I have to go all over the world and I'm only one person, I'm not, like, in a band or in a girl group, so I have to delegate my time very carefully.

"I'm, like, picking out the costumes for the dancers, and writing the lyrics, and making sure all the lights are right and everything. I have a great team that really helps me and I couldn't do it without them, but I am definitely the captain of my ship and everybody reports to me."

Perry admits she looks up to former SNL stars like Amy Poehler and Tina Fey, and would love to emulate their TV careers if she had the time.

She says, "All of my heroes are girls that have either been on SNL or been a part of SNL, like Amy Poehler, Tina Fey, Kristen Wiig, Amy Sedaris - those are my (heroes)... I just love self-deprecating women who can make fun of themselves, but it's not all about them and their nice lighting, you know, they don't have to be chic in every shot; they can kind of laugh at themselves."

Perry has previously flexed her comedy muscles with guest appearances on TV sitcoms How I Met Your Mother and Raising Hope.