As part of the plan to rescue Han Solo, Luke sent the two droids, R2-D2 and C-3PO, to the palace of Jabba the Hutt. R2-D2 played a holographic message to Jabba in which Luke requested an audience with the infamous crime lord and, to prove his sincerity, asked the Hutt to accept the two droids as gifts. While the nervous C-3PO was startled at this news, it was all part of Luke's>plan to put everyone in position for the planned rescue attempt.