Pickettywitch was a British pop band from the early 70s, known for their sweet and melodic sound. Lead singer Polly Brown's smooth and delicate voice was perfect for their signature soft-rock ballads. To sing like Pickettywitch, you'll need to focus on developing your vocal control and dynamics.

Start by practicing breathing exercises to increase your breath support and sustain. The Farinelli Breathing exercise is perfect for this and can be found at https://www.youtube.com/embed/ZXNO8Be4Q6Y?start=0.

Once you've warmed up your voice with some gentle humming, move on to working on your articulation and resonance. Finger Biting exercise is great for articulation and can be found at https://www.youtube.com/embed/aduHZIRGh8g?start=0. Resonance in singing is a key component of Pickettywitch's soft and melodic sound, and you can learn more about this in the article on Resonance in singing, at https://singingcarrots.com/blog/resonance-in-singing/.

Practice singing in your chest voice to get a feel for the depth of sound that Pickettywitch was known for. The Singing Comfort Zone exercise is great for this and can be found at https://www.youtube.com/embed/qH-FmvGsv0c?start=0. Be sure to also work on your vocal registers, as Pickettywitch effectively used a mixed voice to create dynamic range in their songs. To achieve this, practice the exercises for Voice Break and Mixed Voice, found at https://www.youtube.com/embed/Xz5p96rkSys?start=0 and https://www.youtube.com/embed/tF_TfWIF8ZA?start=0 respectively.

Pickettywitch's songs are great examples of their style and technique. You can find their most popular songs by searching Singing Carrots' Song Book, at https://singingcarrots.com/search. "That Same Old Feeling" and "Rosemary Goes Wild" are great examples of their soft-rock ballads, highlighting the lead singer's delicate and smooth voice.

Overall, singing like Pickettywitch is all about developing your vocal control and dynamic range, with a focus on achieving a soft and melodic sound. By practicing breathing exercises, articulation, resonance, chest voice, vocal registers, and Pickettywitch's songs, you'll be well on your way to achieving their signature style.