The singer-songwriter, 23, is currently on his American Heart World Tour and performed in Glasgow on Thursday.
Over 50? Try 5 standing moves that build strength, raise your heart rate, and help reduce belly fat at home in minutes.
Everyday Health on MSN
The 4 Best Exercises for the Lower Abs With a Herniated Disk
Performing the right core exercises for a herniated disk can help reduce pain and improve mobility. Focus on your abs with four exercises to try and two to avoid.
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