Searching Guests For Podcasts

Of course, I can help you craft an invitation message for potential podcast guests on the topic of learning to sing from scratch. However, it seems like you've mentioned "knitting booties" by mistake. If you'd like assistance with a message related to knitting booties, please clarify, and I'll be happy to help. 
Here's a sample invitation message for your podcast:
Subject: Invitation to Be a Guest on Our Podcast: Unlocking the Art of Learning to Sing from Scratch
Dear [Guest's Name],
I hope this message finds you well. I am reaching out to you because of your incredible expertise and thought leadership in the field of singing. I've been following your work and have been truly inspired by your insights.
I am the host of [Your Podcast Name], a podcast dedicated to helping aspiring singers and music enthusiasts learn the art of singing from scratch. Our listeners are eager to discover effective techniques, tips, and personal stories from experts like you.
I am impressed by your extensive knowledge and your passion for helping others achieve their singing goals. Your unique perspective on learning to sing aligns perfectly with our podcast's mission.
I would like to invite you to be a guest on our show, where we will discuss "5 Simple Exercises for Learning to Sing from Scratch." Your experience and insights would provide immense value to our audience, helping them embark on their singing journey with confidence and skill.
Here are some details about the podcast recording:

Date and Time: [Propose a few options]
Duration: Approximately [Length of the episode]
Format: We typically conduct remote interviews via Zoom or Skype.

Our podcast has a growing and engaged audience, and your participation would undoubtedly elevate our content. Plus, it's an excellent opportunity for you to share your expertise with a broader audience and promote any projects or initiatives you are currently working on.
If you're interested or have any questions, please let me know your availability, and we can schedule a convenient time for the interview. Feel free to reach out to me at [Your Email Address] or [Your Phone Number].
Thank you for considering this invitation, and I look forward to the possibility of having you as a guest on [Your Podcast Name].
Warm regards,
[Your Name]
[Your Podcast Name]
[Your Contact Information]
Feel free to personalize this message further to suit your podcast's tone and style, as well as to tailor it to the specific expertise and achievements of the potential guest you're reaching out to.