Peter Bjorn and John are a Swedish indie-pop group known for their catchy melodies and upbeat sound. The band's lead singer, Peter Morén, has a unique vocal technique that is distinctive of their style. Here are the steps to learn how to sing like Peter Bjorn and John:

1. Analyze your voice: Before you start singing like Peter Morén, you need to understand your voice type. Singing Carrots offers a voice range test to determine which range suits your voice best.
2. Breathing Basics: Knowing how to breathe correctly is the key to good singing. A correct breathing technique, combined with the proper posture, can increase vocal power and tone, while helping you maximize your range.
3. Voice Registers & Vocal Break: Understanding voice registers and vocal break is an essential part of singing. Your voice breaks in the transition between registers. By training your voice and practicing scales, you can smooth out the transition and develop a consistent vocal range.
4. Warmups and exercises: The singing carrots Pitch Training tool, among other videos on the internet, can help you warm up your vocals and practice your technique.
5. Listen and study the music: Listen to the music of Peter Bjorn and John, study the lyrics and follow along while singing to their songs. Songs to take a look at include "Young Folks", "Amsterdam" and "Second Chance".
6. Emotion and Intent: Put the right emotions into singing by following the lyrics of the songs of Peter Bjorn and John. By doing this, it's easier to get into the right emotional state when performing their songs.

Understanding the unique vocal technique of Peter Morén, it's essential to develop your head voice and perfect your falsetto, which is used quite frequently in their songs. You can also improve your voice by working on other areas like avoiding constrictions, improving posture, and practicing onsets.

In conclusion, to sing like Peter Bjorn and John, you need to develop your unique style while incorporating techniques highlighted in the articles and tools provided. Load up a playlist of Peter Bjorn and John songs, open up the Pitch training tool, and learn how to sing in their style.