John will be appearing at the Chicago Comic and Entertainment Expo (C2E2) on 14 and 15 April 2012. See more details at the C2E2 website
John will be appearing at The Greatest Show in The Galaxy - an event that spans over two days, Saturday 12 and Sunday 13 May 2012.
The convention is held at the East of England Showground in Peterborough and you can read more about it, and book tickets, via their website.
John will perform in four special open-air summer concerts in Scarborough, Glasgow, Blackpool and Hampton Court Palace this June. Launching the concerts, promoters Cuffe and Taylor said:
"John Barrowman, the multi-talented star of stage and screen on both sides of the Atlantic, will headline four fantastic shows across the UK this summer. Following several sell out tours and hit albums, John will once again prove why he is one of the UK's most versatile and treasured artists with this new show."
These will be John's only headlining concerts this year. Tickets go on sale at 9.00am on Tuesday, 3 April. For more information on dates, venues and how to book tickets, see the concert page.
For more information on John's appearances, visit his official website
Update on the Gilded Lilys filming from an anonymous poster on the Scottish Actors Facebook page:
FYI, Gilded Lilys TV pilot show has been filming in several locations in and near Boston and Worcester, MA. Crane's Castle is in Ipswich, MA, but JB was not there. He was filming later in the week at the Wang Theatre, Boston, Worcester's Union Station (outside & night shoot), and at Nick's Saloon & Bar, Worcester. GildedLilysFans twitter and FB pages are tracking filming locations pretty well if you want more info.