EXCLUSIVE: Selena Gomez Talks Hanging with Taylor Swift & Calvin Harris, Becoming a Big-Time TV Producer, and

Selena Gomez is all about making a difference.

ET caught up with the 23-year-old singer at WE Day on Thursday in Los Angeles -- a star-studded celebration of youth making a difference in their local and global communities -- where she talked about why the uplifting event is so important to her, her return to television, and her recent outing with BFF Taylor Swift and Taylor's beau, Calvin Harris.

"I think the awareness is really important ... it makes you reevaluate your life sometimes -- what am I complaining about, what am I doing every single day?" Selena exclusively tells ET's Katie Krause about being a part of WE Day. "[The youth is] changing the world, we're the next generation coming up."

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When it comes to her own way of empowering her fans, Selena says she hopes to change "the dialogue" with regard to social media. Last month, Selena celebrated becoming the most followed person on Instagram, but admits social media definitely has its downside.

"I'm very lucky that I have the platform I have, but on social media, as much as it's a blessing and it's fun, it can really tear people down," Selena says. "I always hope the people I'm involved with, and who support me, can just kind of spread love within that. It's hard."

The former Disney star definitely hopes to keep putting some good out into the world with the new shows she's producing. Selena is executive producing 13 Reasons Why, a TV show based on the best-selling young adult novel of the same name, on Netflix. She also confirms to ET that she's working with producer Aaron Kaplan on another exciting new series, which, according to Billboard, is inspired by the story of Ana Cobarrubias. Cobarrubias is a young Latina who gave a powerful speech at the Zimmer Children's Museum Discovery Awards Dinner in November about making a difference in her poor East L.A. neighborhood, and got a standing ovation.

"We just got inspired. My mother and I, we heard this girl's speech, and you'll understand when you kind of gain the perspective of ... there's a lot of things that are happening in communities that we don't know," Selena says. "So I won't give too much of it away, but it's gonna be great."

"My mom and I are actually producing a few projects together. It's something we've always loved to do, creating content that inspires people, that moves people," she adds. "Why I love filmmaking, why I love making music, is because it affects people. That's kind of something I've always wanted to be a part of, whether I'm in it or not, I want to make things great."

The "Same Old Love" singer -- who's currently celebrating her third No. 1 song off Revival with her latest hit, "Hands to Myself" -- is certainly busy these days. On Sunday, she hung out with her BFF, Taylor Swift, and Taylor's boyfriend, musician Calvin Harris, at the iHeartRadio Music Awards, and tells ET she "had so much fun."

... And Taylor definitely has Selena’s approval when it comes to Calvin.

"He's great, honestly, he's such a wonderful guy," Selena gushes about the handsome 32-year-old DJ/producer.

Selena also revealed why she changed out of her gorgeous orange Mugler cut-out jumpsuit she wore on the red carpet into a stylish pair of high-waist jeans and a white tank top.

"My outfit got wrinkled so I changed it to jeans. It got wrinkled!" she smiles. "I was like, I might as well just put my jeans on. It was in my backpack."

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Watch the video below to see Selena adorably fangirling over Celine Dion when she caught the legendary diva's concert in Las Vegas last month!

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