Fans of Dr. Doug Ross are probably suffering from heart palpitations right about now. Apparently, George Clooney is coming back to the series that made him famous with sources telling E! News that he’ll be shooting scenes this week for an episode of ER. The last time George showed up in his scrubs was in 2000 and fans have been clamoring for his return for the series’ 15th and final season. It’s still hush-hush, however, with neither George’s nor ER’s reps confirming that he’s filming his scenes this Thursday and Friday.