Jay Leno will always show up for a good cause!

One week ago, the comedian, 74, fell down a steep hill in Pennsylvania, badly bruising his face and body and breaking his wrist. His injuries were still visible on Thursday, Nov. 21, when he was spotted in Los Angeles. However, on Friday, Nov. 22, he appeared to cover his bruises from the fall with makeup while hosting a charity event at the Wynn Las Vegas.

The Tonight Show former host traveled out of California to host the inaugural amfAR Las Vegas benefit event, where Sylvester Stallone and his wife, Jennifer Flavin Stallone, were honored with amfAR’s Award of Inspiration in “recognition of their generous support of amfAR’s lifesaving work, in addition to numerous other causes related to health, education, and women’s rights,” a press release states.

The night also featured performances from Diana Ross and Amber Riley. Leno attended the event in a blue suit paired with black dress shoes.

He told TMZ earlier this week that he fell while trying to walk to a nearby restaurant at the bottom of his hotel, which, according to Inside Edition, was a Hampton Inn about 30 miles outside of Pittsburgh.

Leno had a show at the Palace Theatre in Greenhouse, Penn., on Friday, Nov. 15, and later performed at the Yaamava’ Theater in Highland, Calif., on Saturday, Nov. 16.

“To get to [the restaurant], I didn’t have a car, so you had to walk about a mile and a half around. I said, ‘Well, the hill doesn’t look that steep. It’s about 60-70 feet. Let me see if I can go down the hill,’ I fell down. Boom, boom, boom. I rolled down the hill, hit my head on a rock, knocked me in the eye,” he told TMZ.

He also told Inside Edition that the incident caused him to break his wrist and lose one of the nails on his finger, leaving the entire left side of his body bruised. 

CBS News spoke with Gary Latshaw, the owner of Latshaw Productions, the company that put on his show on Friday, who recalled seeing Leno following the incident.

“I was thinking, ‘I need to call an ambulance’ because I thought, whatever happened, it was a severe fall,” said Latshaw.

Latshaw said that it “was inspiring to watch” Leno, who previously suffered second-degree and third-degree burns in November 2022, still put on a show.

Never miss a story — sign up for PEOPLE’s free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

“He didn’t want to disappoint people, including people who were there to meet him backstage. He could have canceled that. He cancelled nothing. I stand amazed. I really do. It was inspiring to watch,” he said.