Chrissy Teigen sounds like a nosy neighbor.

The 30-year-old supermodel recently moved into Rihanna's former home, and admitted while on Tuesday's episode of "The Ellen DeGeneres Show" that she's been known to open the 28-year-old singer's leftover mail.

"The one fun thing that does happen every once in a while is that I get a bill of hers," Teigen shared, adding that RiRi once got a bill for $12. "I really want to somehow give it back to her. So I tried to bring it to the GRAMMYs, and John [Legend] said, 'No, please don't. It doesn't look cool. You're embarrassing me!'"

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That's not the only mail of Rihanna's that Teigen has received. "She gets a lot of fan mail," she revealed. "I don't get my own to the house."

When DeGeneres pointed out that opening someone else's mail was illegal, Teigen gasped, exclaiming, "Will you be editing this? OK, good to know. This is why I can't run for president."

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She added, "I never in my life thought I would be cool enough to live in Rihanna's pad."

A source confirmed to ET back in January that Teigen and Legend were moving into a $14 million home in Beverly Hills, California. Rihanna moved out of 8,520-square-foot pad in 2011.

While Teigen didn't take Rihanna's mail to this year's GRAMMYs, she did have a message for the R&B artist when talking to ET on the red carpet. "Rihanna, if you're watching, we have some of your mail!" she joked. "You have a $19 credit towards a car purchase, I believe."

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