As one of the most renowned songwriters and producers in the game, Sam Hollander has had multi-platinum success writing and producing for the likes of Panic! At The Disco, Fitz and the Tantrums, Weezer, Katy Perry, Train, One Direction, Daughtry, Pentatonix, and Gym Class Heroes, amongst many others. To date, he has achieved 22 US Top 40 Hits, as well as 10 Number 1's, 10 top fives, and 87 Top 10 chart positions globally. His songs have been streamed over 5 billion times, and in 2019, he held the #1 position on the Billboard Rock Songwriters chart for nine weeks, a year-end record. Sam has also been chosen to be on Variety's Hitmakers list, as well as being named Rolling Stone's Hot List Producer of the Year in 2008.

Hollander's career has recently hit new heights from collaborations with Fitz and the Tantrums' multi-platinum worldwide hit, "HandClap" (one-billion-streams) and eight songs he co-penned on Panic! At The Disco's Billboard 200 No. 1 album Pray For The Wicked, including the 5x platinum, billion streamed record-breaking global hit "High Hopes" and "Hey Look Ma, I Made It!" which replaced "High Hopes" at No. 1 on the Hot Rock Songs chart. Other notable recent successes include writing Banners’ platinum hit, "Someone To You," Blink-182's Alternative Top 10 single "Blame It On My Youth", James TW's worldwide platinum hit "When You Love Someone" and writing and producing two songs on the legendary Ringo Starr's recent release "What's My Name." He's currently writing and producing the music for NBC’S fall 2021 new drama series Ordinary Joe.