The Linn LinnDrum is a drum machine from the early 1980s. It was the successor to the Linn LM-1. Although Prince received one when it came out, he preferred his LM-1 as it allowed more options for tuning and signal processing.
There is only one example of Prince using a Linn LinnDrum in the studio. On the song Elephants and Flowers, Prince used a rented LinnDrum as his LM-1s were unavailable.