The title of the song references a viral Facebook Messenger screenshot, popularized on Reddit, in which an Indian man, in broken English, demands nude photos, and, when his messages go unanswered, he posts bitch lasagna ( lasagna might have been an approximation to the parting phrase hasta lasagna, but without punctuation the post looked like he was calling her a bitch lasagna). The two channels surpassed each other in subscriber count on a number of occasions in February, March, and then in April 2019, when PewDiePie declared an end to the 'subscribe to PewDiePie' meme and T-Series became the most-subscribed YouTube channel. During the competition, both channels gained a significant number of subscribers at a rapid rate, jumping from approximately 60 million to 100 million subscribers within a few months. As a result, fans, along with celebrities and other YouTubers, showed their support for each channel by encouraging others to subscribe.

In mid-to-late 2018, the subscriber count of the Indian music label T-Series rapidly approached that of Swedish YouTuber and web comedian PewDiePie, who at the time was the most-subscribed user on YouTube. As of October 2023, the song has accumulated over 317 million views on YouTube, making it the most-viewed video on PewDiePie's YouTube channel. The song was first released with an accompanying music video on 5 October 2018, and was renamed and re-released to music platforms on 6 November 2018.

The song was one of the first events in the PewDiePie vs T-Series competition, in which the two channels competed for the title of the most-subscribed YouTube channel. The song satirizes Indian music label T-Series, as a response to predictions that T-Series would surpass PewDiePie in terms of subscriber count. ' Bitch Lasagna' (stylized in all lowercase), originally named ' T- Series Diss Track', is a song by Swedish YouTuber and comedian PewDiePie in collaboration with Dutch music producer Party In Backyard.

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