Hook is an AI-driven social music app, billed as the world's first AI-powered social music expression platform, that lets fans legally create short-form remixes and mashups of popular songs. Users pick up to a 30-second clip, apply AI-powered effects (speed, tempo, reverb, bass), personalize cover art, and share their 'hooks' to TikTok, Instagram, WhatsApp, and more. By licensing catalogs from major labels including Universal Music Group, Hook aims to give artists agency while letting fans remix legally. The company was founded by CEO Gaurav Sharma, former COO of JioSaavn, India's largest music streaming service. Hook raised a $3.5M seed round (initially announced October 2023, expanded in March 2024) co-led by Waverley Capital and Point72 Ventures, then a $10M Series A led by Khosla Ventures in early 2026, bringing total funding to roughly $16M, with label campaigns generating over 250 million views.