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Alaina Castillo is a Los Angeles-based musician whose Instagram blends emotionally resonant new music, singing content, and polished beauty/fashion storytelling. She’s a strong fit for campaigns seeking an artist with an engaged audience, a clear visual identity, and authentic creator-style content that naturally integrates product moments.
Houston native Alaina Castillo first found fame with her online renditions of popular songs before making the jump into the pop world with the release of her 2019 debut EP, the bilingual Antisocial Butterfly. In 2020, she released another EP, the voicenotes, with her vocal delivery and alternative take on pop eliciting comparisons to contemporaries Billie Eilish and Ariana Grande . Later that year, she issued the singles "Tonight," "Párate," and "Wishlist." The rising pop star is coming off a breakout year that propelled her name into the head of the 2021 class, earning the coveted spot of Spotify’s first-ever US RADAR artist, being named one of Billboard’s Latin Artists to Watch, and landing a spot on NME Essential Emerging Artist list.
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1 post & 1 story with the Alaina Castillo promoting your product.
Long-term deal involving appearances, photoshoots, social media and more.
Have Alaina Castillo make a live appearance at your next event
Brands can sponsor Alaina Castillo on OpenSponsorship by creating a free account, browsing Alaina Castillo's profile, and sending a sponsorship proposal for social posts, appearances, or integrated campaigns. OpenSponsorship handles messaging, deliverables, and deal terms in one platform so you can connect directly with this musician.
Alaina Castillo is listed on OpenSponsorship and available for brand sponsorships. Brands can review campaign packages, audience details, and pricing on this profile, then submit a proposal to start a partnership with this musician.
According to OpenSponsorship, estimated pricing to sponsor Alaina Castillo starts at $14,400 for a social media post, $18,000 for a appearance and $60,000 for a brand ambassador campaign. Final rates depend on deliverables, usage rights, and campaign scope. Sign up on OpenSponsorship to view packages and send a proposal.
According to OpenSponsorship, Alaina Castillo's audience includes 1.7M+ TikTok followers, interests including Skin Care, Fashion, Apparel, Activewear, Music, and more, based in Los Angeles, CA, United States. Brands can use this profile to evaluate reach, content niche, and sponsorship fit before sending a proposal.

How do you measure influencer marketing ROI when half the numbers social media gives you are vanity metrics? It is the question brands ask us most, and it came up again when I joined Massimo Marinelli on the Berkida Ventures Podcast. After more than ten years and thousands of brand deals with athletes and creators at OpenSponsorship, here is how we think about it, and the framework we use with our clients.
October 28, 2026