Alli Sims may have been out partying on Saturday night - but when the subject of conversation turned to Heath Ledger's untimely passing, she was more than willing to change gears and pay tribute!

The aspiring singer expressed her sincere condolences, claiming to be thoroughly bewildered by the tragic series of events.

"I don't even know what to say," Alli kept remarking.

Us either - it's just such a senseless loss!