BEVERLY HILLS, Calif. – It’s that painting! You know you’ve seen it before, and more than once. Here’s a clue: picture Chandler, Rachel and Monica stretched across an orange sofa, drinking coffee and bantering about their latest dating dilemmas. You got it! It’s the artwork that hangs behind the iconic couch at Central Perk, the Friends’ favorite hangout – and it’s headed to auction this Saturday in Beverly Hills, California.