2018 runway jazz tiwa savaage to play runaway jazz

I think there may be a bit of confusion here!

Runway Jazz is a music festival that takes place in Lagos, Nigeria, and it's not a specific artist or band. It's an annual event that celebrates jazz music and features a lineup of talented musicians from around the world.

Tiwa Savage is a Nigerian singer-songwriter, but I couldn't find any information about her being scheduled to play at Runway Jazz in 2018 or any other year. It's possible that you may be thinking of a different artist or event.

If you could provide more context or clarify what you're looking for, I'd be happy to try and help you further!