Can a singer-only (unable to play instruments) write music successfully?

by JayAaroBe
(Los Angeles, California, USA)

Perhaps someone can give me some good advise?

Here's my musical background: I played piano for several years as a child, and saxophone & guitar for several years as a teenager (I'm in my 20's now). Also, I've always had a good musical ear, excellent pitch discrimination and tonal memory. I can hear the music in my head perfectly.

Over the years, like many people, I would sing along to my favorite songs. Person after person would say, "You have a good singing voice." I finally shoved aside my shyness and took an introductory singing class. It went well, I enjoyed it, and I want to continue to pursue singing.

Unfortuntely, I stopped practicing my instruments and I eventually lost the ability to play any of them. I tried dusting off my guitar and playing it but I've completely lost the finger dexterity needed to play so I end up getting extremely frustrated and throwing aside my guitar.

I've decided that I don't want to relearn guitar. What I really want to do is write songs (perhaps collaboratively) and sing them with a band. My question is: is this a reasonable goal? Is it possible for me to be the singer and contributing song-writer of a band without being able to play guitar or piano anymore?

Are there any examples of successful bands that have a singer with my type of situation?

If you think the answer is yes, do you have any advise for me on how I can pursue this goal?