When Dick Clark passed away earlier this week, some of the entertainment world's biggest stars immediately reacted to the news with great sadness. Clark's influence on pop culture has shaped the way TV looks and feels, even in 2012.

Without Clark, shows like "American Idol" (which is hosted by Clark's mentee Ryan Seacrest), "TRL" or even "Glee" might have never existed. He helped change the way TV, pop culture and music influence and interact with one another.

Fans and colleagues alike believe that Clark's annual "Dick Clark's New Year's Rockin' Eve" will certainly never feel the same.

"When I first heard about Dick Clark passing, the first thing that went through my mind was 'Man, the world just got a little bit darker for losing a man who made it a whole lot brighter,' " Olivia Munn told MTV News. "That's what my image of him is, just the ball dropping and being with my family on New Year's. Growing up, we started a new year with Dick Clark every year.

"And the other thing I thought was I hope that he was able to realize what an impact he made on this world. As entertainers, he did it right," she added.

"He went in, he tried to do the best job, keep his head down, do entertainment work to entertain the people ... he wasn't into any of the other BS that we get wrapped up into now and I think that's a great lesson. Do it right."

Aubrey O'Day has a similar memory of Clark. "Dick Clark's a legend. He's been such an innovative mind and I think the time we will miss him the most will be New Year's Eve," she said. "I don't think it'll ever be the same." That memory is even more personal for Monica, who was actually featured on the holiday broadcast and met Clark several times. She recalled just how personable he was.

"I have so many fond memories of Mr. Clark. It's just unbelievable we've lost so many people that we love. And over the 15, 16, 17 years of my career, there have been so many people who have played a huge part of it that are no longer here, and Mr. Clark is one of them," she said.

"I remember my first New Year's event with him. I thought it was so amazing that he would come in and talk to each person who was performing that night face to face ... I just remember his humility and the way he always treated me," she recalled. "He never forgot my face. It was amazing how personable he was."