Concerts & Collaboration with Foreign Artists -

In 1980s and 1990s, Asha went globe-trotting, staging concerts in Canada, Dubai, UK, U.S. and many other countries. In 1989, during a world tour, she performed in 13 US cities in 20 days. Immediately after this, she had an already sold-out concert scheduled in Stockholm, Sweden. Due to the stressful schedule, Asha suffered a massive attack of colitis, together with fever, cough and weakness. In Stockholm, a pre-concert crisis meeting was called, attended by Asha's son (and manager) Anand and the sponsors. It was decided that the orchestra will play many instrumental tracks, the accompanying singers like Suresh Wadkar will shoulder the load, and Asha will make a small appearance. But Asha rejected all such proposals, and sang at the concert with great difficulty, in a not-so-good voice. Her first set of six Bollywood songs did not receive any response from the audience, which consisted mostly of Indian and Pakistani expats. Before the start of the second set of songs, a fan in the crowd requested her to sing a Marathi song. Asha obliged and sang Naach-naachuni ati mi damale ("I'm very tired of this endless dancing"). When the song ended, the auditorium erupted with claps and the encores started. After the concert, Asha was in bed for a month, recuperating from overexertion. In October 2002, she did a concert with Sudesh Bhosle and others, in London, for "Help the Aged" to help raise funds for the elderly in India. In 2007 she toured the US, Canada, and West Indies in a tour called "The Incredibles". In this tour, she was accompanied by singers Sonu Nigam,  Kunal Ganjawala and Kailash Kher. This tour, originally scheduled for only 12 concerts, went on to hold more than 20.

In the mid-1980s, Asha sang with Boy George (Bow down mister) and Stephen Lauscombe. In 1997, she sang a love song with the boy band Code Red, at the age of 64. She also recorded the song The Way you Dream (One Giant Leap, ) with Michael Stipe that was used in the English movie, Bulletproof Monk. The song was also released on the album 1 Giant Leap for 2002.

In 1997, the British band Cornershop paid tribute to Asha with their song Brimful of Asha, an international hit which was later remixed by Fatboy Slim. In 2003, British opera pop singer Sarah Brightman sampled her song "Dil Cheez Kya Hai" on her album Harem. It was used as the intro for her song "You Take My Breath Away".

In 2005, American string quartet Kronos Quartet re-recorded R D Burman compositions like Chura Liya, Piya Tu, Mera Kuchh Saaman among others and got Asha to sing them. Despite her age, she recorded three to four songs in a day, leaving the quartet members stupefied. On August 23, 2005, You've stolen my heart - Songs From R D Burman's Bollywood was released in US. The album was nominated for Grammy Awards 2006 in the category of "Best Contemporary World Music Album". In the 1990s, a friend had introduced David Harrington of Kronos Quartet to the song Aaj ki raat. Harrington was mesmerised, and the song ended up on the album Kronos Caravan.

Also in 2005, The Black Eyed Peas sampled her songs "Ae Naujawan Sab Kuchh Yahan" (Apradh, 1972) and "Yeh Mera Dil Pyaar Ka Diwana" (Don, 1978) in their hit single "Don't Phunk with My Heart". In late 2006, Asha collaborated with Australian test cricket star, Brett Lee. The single, You're the One for Me, debuted at number 4 on the charts and reached a peak position of number 2.

In 2006 Asha recorded one song for the soundtrack of Pakistani movie Mein Ek Din Laut Kay Aaaonga. She sang the song, titled Dil Key Taar Bajey, with famous Pakistani pop singer Jawad Ahmed. It was aired as part of the film's promotional campaign and became very popular, featuring on top music charts.