May I be a pain and ask for more help, please?

I'm in a band (Halfe Pannikin) and we play a lovely tune called Kathleen O'Hehir. We're dreading someone asking us what it's called because we haven't a clue how to pronounce it (the O'Hehir bit, we're OK with Kathleen [grin])

If you're ready for a laugh - I say something like oh -huh-heer

Not what should it be, please?

Ta,
Marilyn