Question: Who sat in on guitar at the Let It Rock concert and had a top 5 hit on the U.S. "Billboard" Hot 100 chart, named "Angel Eyes?
Context: "Angel" is a song by American R&B singer-songwriter Amanda Perez.  It was featured on her 2003 album of the same name, and performed well in the US, where it reached the top 5 on the Pop 100 and the top 20 on the Billboard Hot 100.  The song was also a top 5 hit in Australia and New Zealand. "No Tengo Dinero" (Spanish: "I Don't Have Money") is a début single of Danish musical group Los Umbrellos, considered to be their signature song.  It was released by FLEX Records (EMI on May 14, 1997.  Based on the theme of 1960 film "Never on Sunday" by Greek composer Manos Hadjidakis, the lyrics were written by Jay and Richie Balmorian and group member Al Agami.  It was produced by Kenneth Bager, Michael Pfundheller and Jan Elhøj, with additional production handled by Cutfather & Joe.  The song was a top 5 hit in Austria, Denmark, Italy, New Zealand, and Switzerland.  The song peaked at number 42 on the "Billboard" Hot 100 in the United States.  It stayed on the chart for 27 weeks without ever entering the top 40.  As of August 2003, the single had sold 800,000 copies worldwide.  Unlike the band's following releases, "No Tengo Dinero" enjoyed chart success, thus Los Umbrellos were named one hit wonder. "Girls & Boys" is a 1994 song by British rock band Blur.  It was released as the lead single from the group's third album "Parklife".  Charting at number 5 on the UK Singles Chart, "Girls & Boys" was Blur's first top 5 hit and their most successful single until "Country House" reached number 1 the following year.  The single surpassed their previous commercial peak "There's No Other Way" by three spots on the UK Singles Chart, and saw the group achieve greater worldwide success.  In the US, the track reached number 59 on the "Billboard" Hot 100 singles chart, becoming the band's second single to hit the chart after "There's No Other Way".  It also reached number 4 on the Modern Rock songs chart. Let It Rock is a Juno Award-nominated album that documents American-Canadian singer Ronnie Hawkins' 60th birthday celebration and concert at Massey Hall in Toronto, Ontario, Canada.  The concert took place on January 8, 1995 and featured performances by Hawkins, Carl Perkins, Jerry Lee Lewis, The Band and Larry Gowan.  Jeff Healey sat in on guitar for most, if not all, of the performances.  Hawkins' band, The Hawks, or permutations of it, backed most, if not all, of the acts.  All of the musicians performing that night were collectively dubbed "The Rock ‘N’ Roll Orchestra".  The concert is among the last recorded of both Perkins and Rick Danko of The Band.  An eponymous video of the concert was also released. "Hard to Say I'm Sorry" is a song by American rock group Chicago.  It was written by lead singer Peter Cetera and producer David Foster, and released on May 17, 1982 as the lead single from the album "Chicago 16".  The song hit number one for two weeks on the "Billboard" Hot 100 chart on September 11 of that year.  It was their first top 50 hit since "No Tell Lover" in 1978, spent twelve weeks in the top 5 of the Billboard Hot 100 chart, and was nominated for a Grammy Award for Best Pop Performance by a Duo or Group with Vocal.  The single was certified Gold by the Recording Industry Association of America (RIAA) in September of the same year. Tamara Walker (born in Ohio) is an American singer-songwriter.  Walker began her career as Miss Maryland where she placed in the Top 10 at the Miss America pageant.  In 2000 she signed with Curb Records.  She also signed a publishing deal with Sony Tree .  Initially, Walker recorded country music, but the label decided to release her to the Pop AC market .  Subsequently, her first single went to country radio but the country album went unreleased.  Then, in 2001, Curb Records released her debut album, "Angel Eyes", and she charted three singles on the "Billboard" Hot Adult Contemporary Tracks chart.  The title track of her debut album was the theme song to the 2001 Jennifer Lopez film, "Angel Eyes". "Little Green Apples" is a song written by Bobby Russell.  Originally written for and released by American recording artist Roger Miller in 1968, it also was released as a single by American recording artists Patti Page and O. C. Smith in separate occasions that same year.  Miller's version became a Top 40 hit on the "Billboard" Hot 100 chart and on the UK Singles Chart, while Page's version became her last Hot 100 entry and Smith's version became a No. 2 hit on the "Billboard" Hot 100 chart.  The song earned Russell two Grammy Awards for Song of the Year and Best Country Song.  In 2013, "Little Green Apples" was covered by English recording artist Robbie Williams featuring American recording artist Kelly Clarkson, which became a top 40 hit in Mexico. Norman Jeffrey "Jeff" Healey (March 25, 1966 – March 2, 2008) was a Canadian jazz and blues-rock vocalist, guitarist, and songwriter who attained musical and personal popularity, particularly in the 1980s and 1990s.  He hit Number 5 on the U.S. "Billboard" Hot 100 chart with "Angel Eyes" and reached the Top 10 in Canada with the songs "I Think I Love You Too Much" and "How Long Can a Man Be Strong". Redbone is a Native American rock group originating in the 1970s with brothers Pat and Lolly Vegas.  They reached the Top 5 on the U.S. "Billboard" Hot 100 chart in 1974 with their No. 5 hit single, "Come and Get Your Love".  The single went certified Gold selling over half a million copies.  Redbone achieved hits with their singles "We Were All Wounded At Wounded Knee", "The Witch Queen of New Orleans", "Wovoka", and "Maggie" in the United States, but predominantly overseas.  Redbone is known and accredited in the NY Smithsonian as the first Native American rock/Cajun group to have a No. 1 single in the United States and internationally. Midnight Madness is the second studio album from rock band Night Ranger released in 1983.  Their second album produced three charting singles and contains the band's best known hit, "Sister Christian."  It remains their highest selling album at over a million copies sold in the US.  The first single/video, "(You Can Still) Rock in America" peaked at #51 in early 1984 on Billboard's Hot 100 chart and also reached #15 on Billboard's Mainstream Rock Tracks chart.  "Sister Christian" peaked at #5 on Billboard's Hot 100 and was one of the most played videos of 1984.  The song also has been featured in several films including "Boogie Nights" and "Rock of Ages" among others.  "When You Close Your Eyes" was the third single/video and reached #14 on Billboard's Hot 100 chart and #7 on Billboard's Mainstream Rock Tracks Chart.  The 1984 CD release contains a slightly different recording of the track.  "Rumours In The Air" also charted on the Billboard Mainstream Rock chart peaking at #26 in the spring of 1984.
Answer: Jeff Healey