Zayn Malik and Ayra Starr are teaming up for a new collaboration called Heaven Baby, and they are promoting the track in a unique way. The artists shared an image of an old-school Sprint mobile phone with a note inviting fans to call a phone number for a special message. When fans called the number, they heard Ayra Starr and Zayn introducing themselves and teasing the new track. The interactive promotion adds a personal touch to the upcoming release, which is set to drop on August 14.