It looks like Fall Out Boy frontman Patrick Stump just appeared in a rather unexpected place.

During a new episode of Family Guy, Fall Out Boy fans quickly realized Patrick Stump had a small cameo in the show. However, the vocalist's cameo may not be what you think.

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In case you didn't know, Fall Out Boy have some unusual ties to Family Guy. Back in 2008, Fall Out Boy made a small appearance in the teen comedy Sex Drive alongside Family Guy star Seth Green. Soon after, in 2009, Green made a cameo in Fall Out Boy's "This Ain’t A Scene, It’s An Arms Race" video.

More recently, Fall Out Boy teamed back up with Seth Green for an episode of Family Feud. The band went head-to-head with their Hella Mega Tour tourmates Weezer in an ultra-competitive episode of the beloved game show.

Now, it looks like Patrick Stump has made a cameo of his own in one of Seth Green's projects. During a new episode of Family Guy, Fall Out Boy fans quickly recognized Stump's distinct voice coming from one of the characters.

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Although the Family Guy character doesn't resemble Stump in the slightest, his voice is very hard to miss. Stump's voice appears in a brief scene where Peter Griffin is checking out at a convenience store.

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As it turns out, Patrick Stump is seemingly a fan of Family Guy. Over the years, the vocalist has done a few impressions of the animated show's characters during Fall Out Boy concerts.

What are your reactions to Patrick Stump's surprise Family Guy cameo? Let us know in the comments below.