Rob Lowe - The Things They Say: 3935752
"He reminds me a little bit of myself when I was younger, and he's a great friend to my boys as well... He's a smart, really talented guy, big future. He's doing great. He's been a good addition in my life." Rob Lowe on his friendship with Zac Efron, who reportedly battled substance abuse issues in rehab earlier this year (13).