Photo: Getty Images

By Kathleen Perricone

After seven seasons, Chelsea Lately is ending its run tonight.

And there will be some special guests to send off Chelsea Handler in style for the live one-hour event, including Miley Cyrus, 50 Cent, and her good pal and show writer Heather McDonald.

So what’s the biggest lesson Heather has learned from Chelsea after all this time?

“Stay true to yourself,” she tells On Air with Ryan Seacrest. “The truth is she respects you more that you stick to what you love and what you believe in. And that’s what makes people funny when you know they’re being completely genuine.”

Heather’s comedy special, I Don’t Mean to Brag, airs Friday on Showtime.