Filming on the series finale of 30 Rock is currently underway and now we know who the first, but probably not the last, guest star will be: Ice-T.

The rapper turned actor turned Coco-lover posted to his Instagram on Monday, announcing his involvement in the finale:

“Shooting a scene for the final episode of 30ROCK.”

The post was accompanied by a picture of dressing room door, presumably for the disbelievers.

It is currently unknown what character he would be playing though it is possible he could even be playing himself. The likeliest bet is that he will be playing “Fin Tutuola,” a character he has played on NBC’s other stalwart Law and Order: Special Victims Unit for twelve years. Ice-T as Tutuola appeared very briefly during a clip of 30 Rock episode “Que Sorpresa!” in season five where Jack tried to test his voice-controlled remote-control with an episode of SVU.

What’s almost certain, however, is that Ice-T won’t be the last guest star announcement. There are no current rumors regarding potential guest stars but for the show that’s featured legends Jerry Seinfeld and Paul McCartney in the past, something big should be coming down the pike for the finale.

Who else should 30 Rock try to nab for the finale?