Shia LaBeouf has transformed his body!
The 24-year-old actor was spotted running shirtless in L.A. yesterday -- where he was showing off his seriously toned body and some out of control scruff.
The young star probably bulked up for his role in the latest "Transformers" flick, "The Dark of the Moon," which opens this July -- as he was seen picking up Muscle Milk back in April, the month before he started filming.
Check out how LaBeouf has become LaBuff!
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