Musically "Beware" is a hip hop song, backed by "poppy" and "head-bobbing" production, with lyrics that revolve around themes of infidelty and breaking up. Upon release "Beware" was met with generally positive reviews from music critics; who praised the songs musical direction and the inclusion of Jhene Aiko. Commercially the song fared well reaching the top forty of US Billboard Hot 100 and the top ten of the US Hot R&B/Hip-Hop Songs chart, since its release the song has been certified Gold by the Recording Industry Association of America.
An accompanying music video was directed by Matthew Williams and premiered on August 16, 2013, on Vevo, the video was later named one of "The 15 Best Hip-Hop Videos Of The Summer" by XXL. To further promote the song Sean performed at live on various inclusion including Jimmy Kimmel Live and the Hustle After Party.
The lyrics depict relationship tensions between a male and female. The themes of infidelty and breaking up are steered away from in Hall of Fame, making it the only piece on the album to focus on relationships. Both Key Wane and Mike Dean produced the beat which helps utillize the piece's tone. The beat was described as "poppy" and "head-bobbing" by James Shotwell, writer for Spin Media's Under the Gun Review. He also said that it blends well with the three vocalists. "Beware" contains an interpolation of "Ain't No Woman (Like the One I've Got)" written by Dennis Lambert and Brian Potter.
Upon release "Beware" was met with generally positive reviews from music critics. David Turner of Spin magazine praised the song and Big Sean for abounding the norm of hip-hop and moving away from "glossy resilience," Turner continued to commend Sean's choice to focus on "relationship tensions." A reviewer from the BoomBox praised Sean's choice to include Jhene Aiko as a feature and praised her on the "infectious chorus" from Aiko, the reviewer also praised Sean's choice to make a "radio friendly" song as well as praising Lil Wayne's verse.
The music video was directed by Matthew Williams from Kanye West creative company DONDA and premiered on August 16, 2013, on Vevo. The described "trippy" music video was named one of "The 15 Best Hip-Hop Videos Of The Summer" by XXL. During an interview with Rap Up TV Sean described the concept behind the music video stating he wanted to have a video that was cohesive with the singles artwork, as well as the albums other artworks and videos, Sean continued to say;
“It’s been great working with DONDA because they’re somebody who is really trying to elevate artistry, elevate artists, put them on a new level of creativity,” I think they’ve done that for me, from the ‘Beware’ video to the ‘Fire’ video. I’m proud of the video. It took a while to get done, but the end result is good. It’s cool to put out great videos that I can really be proud of.”