Which Kendrick Lamar collaboration had the most impact on his career evolution?

The Evolution of Kendrick Lamar's Collaborations
Collaborations
Kendrick Lamar
Music
The Evolution of Kendrick Lamar's Collaborations poll options
The Evolution of Kendrick Lamar's Collaborations
Collaborations
Kendrick Lamar
- No More Parties in LA with Kanye West
- Freedom with Beyoncé
- Bad Blood with Taylor Swift
- Pray For Me with The Weeknd