A Python script can generate song lyrics in the style of any favorite artist using OpenAI's GPT-3 model and Twilio SMS. To start, users need to install required libraries, obtain an OpenAI API key, set up a Twilio phone number, and create a Flask web application that responds to text messages with generated lyrics. The script uses the GPT-3 model to generate lyrics based on a prompt provided by the user's favorite artist name, and then sends the response back to the user via SMS. Users can experiment with different parameters to improve the quality of the generated lyrics.