Fan" ("Biggest Fan") addresses David's haters, the romantic "Nur mit dir" ("Only with You") featuring Naidoo talks about missing a significant other, and the bilingual "On Off" performed in German by her and in French by Maître Gims details an ambivalent relationship. Critical reception Supersize received lukewarm reviews from music critics. Mirco Leier, writing for laut.de, questioned David's status as a rapper and hip hop artist, claiming that she utilized the genre "solely as a means to an end". While praising her vocal delivery, the production and the catchniess of "On Off" and "Brillis", Leier labelled Supersize as "harmless". He concluded: "[N]one of it feels tangible or substantial. [...] [David] makes sure to present herself as controversially as possible [...] [, but whenever she] is a topic in the media, this rarely is because of [her] music. The character Shirin David is human product placement". Der Spiegel Andreas Borcholte stated that "music seems to be just an accessory in this enactment" and sarcastically opined that "you could also have called the record 'Supersale'" since he believed generating profit was David's main goal. Borcholte thought the album was mediocre and generic, though he hailed "Gib Ihm" as its best track and was also moderately positive towards "Größter Fan"—which he thought Aaliyah was an inspiration for—and "Melodien" ("Melodies"). In a more positive review, Theresa Hein of Süddeutsche Zeitung saw Supersize as being a "good" album and praised the emotional nature of "Fliegst Du mit". She further commended "On Off", which she likened to Beyoncé's "Baby Boy" (2003), and thought that "Gib Ihm" was inspired by "Super Bass" (2011) by Nicki Minaj and had "the best German pop refrain of the year". Lange saw the tracks as "solid and well-sung" and opined that, even though "[David's] few rap lines are rather mediocre", she is "convincing". The reviewer further compared "Unsichtbar" ("Invisible") to material from Helene Fischer's catalogue. Promotion and commercial performance Supersize was supported by seven singles released throughout 2019—"Orbit" (25 January), "Gib Ihm" (15 February), "Ice" (5 April), "Fliegst Du mit" (17 May), "On Off" (28 June), "Brillis" (23 August) and "Nur mit dir" (20 September). While all of them reached the top ten on the German singles chart and at least the top 15 and 30 in Austria and Switzerland, respectively, "Gib Ihm" became David's first number-one in Germany. The Bundesverband Musikindustrie (BVMI) and the Austrian International Federation of the Phonographic