 " Crazy in Love " was lauded by contemporary music critics , who complimented the horn lines and the guest appearance of Jay @-@ Z. Many of them called it the Summer Anthem of 2003 . Tim <unk> of AllMusic described the song as a " stunning pop masterpiece " , while Stephen Thomas Erlewine of the same website called it " <unk> catchy " . Darryl <unk> of Jam ! noted the " Crazy in Love " is " instantly addictive horn lines " . Anthony <unk> of Rolling Stone wrote : " ' Crazy in Love ' ... <unk> out of the speakers on the strength of a propulsive horn sample and the charged presence of her pal , Jay @-@ Z. " Ben <unk> of Blender magazine called the song an " <unk> [ and ] eager @-@ to @-@ please " one . Marc Anthony Neal of PopMatters called the " uh @-@ oh , uh @-@ oh " phrase catchy . MTV News considered " Crazy in Love " to be the " proudest moment " of Dangerously in Love . Similarly , Allison Stewart of The Washington Post called it the best song on the album , praising its instrumentation , harmonies , and the rap verse of Jay Z. This was echoed by Kelefa Sanneh of The New York Times who wrote that " Crazy in Love " is the best one on the album thanks to its " simplicity , irresistible combination of triumphant horns and a wicked hip @-@ hop beat " . She added that " [ Beyoncé ’ s ] vocals - as <unk> and accurate as ever - convey none of the <unk> rush that the lyrics describe . " Likewise , Sal Cinquemani of Slant Magazine wrote the lyrical arrangement , the music structure and the guest vocals by Jay Z all contributed in making " Crazy in Love " a wonderful resume for Beyoncé . 
