/> The Unforgettable concerts with the Bachchans in the US and Europe promises to get progressively unforgettable as it gets more glamorous by the day.

After Akshay Kumar the Bachchans have now roped in three more marquee names to join different venues for the concert.

The other A-listers who've have decided to join the Bachchan trio are Saif Ali Khan, Shahid Kapoor and most surprisingly, Madhuri Dixit.

Says a source close to the Bachchans, "Saif and Shahid showed absolutely no hesitation in joining the Bachchans on their tour. The price being offered was fine and the dates for the venues where they'll perform were worked out to their convenience.

As for Madhuri it'd be the easiest thing in the world for her to join the Bachchans for the concerts in the US since that's where she lives."

With Akshay, Madhuri, Saif and Shahid joining the Bachchan trio the Unforgettable concerts will surely live up to its name.

As for Lara's last-minute opting out, a tight-lipped source from the concerts reveals, "There's much more to her sudden withdrawal than a painful knee."