In August 2008, Wang sought US$320,000 in damages for plagiarism by Pritam, an Indian composer. The lead song for the movie Race (2008), composed by Pritam, was allegedly copied from "In the Depths of the Bamboo Forest," a single taken off from Wang Leehom's Shangri-La album. In November 2008, Wang was selected to conduct the Hong Kong Philharmonic Orchestra for their 2008 annual grand finale, being the first Asian pop musician to conduct the orchestra. The concert Hong Kong Music, Leehom Wang (港樂‧王力宏) was held in the Hong Kong Cultural Centre for three nights, with four shows, receiving CNN International coverage throughout.
Wang embarked on his second world tour, the MUSIC-MAN Tour, in the latter months of 2008. The tour commenced with two shows per night in the Taipei Dome in September 2008, three months before the release of Wang's thirteenth studio album, Heart Beat. Heart Beat was released on December 26, debuting at No. 3 on the weekly G-Music charts. The album peaked at No. 1 on its seventh week of release, ultimately staying on the charts for 17 weeks. Like Wang's previous album, Heart Beat showed a similar emphasis of rock influences. The album largely focused on guitar and electric guitar solos, which Wang also used for performances in most of the album's music videos. Wanting to continue a similar "chinked-out" element, the album's first single, "What's Up with Rock?!" incorporated rock influences with Chinese flavor. For the track, he worked with pipa artist Liu Fang, and the two concentrated on mixing both electric guitar elements and pipa strings into the song.
Another reason he was chosen is due to Wang's enthusiasm in the 2008 Olympic Games Theme Songs Competition. His single "One World One Dream" was chosen as an Olympic Games participation song. The single was written, sung, produced, and scored entirely by himself. He sang along with Jackie Chan, Stephanie Sun, and Han Hong in the song for "The One Man Olympics" which was about the first Chinese to be in the Olympics. He also sang in the 100 days countdown theme song "Beijing Welcomes You". He also sang alongside Stefanie Sun, Wang Feng, and Jane Zhang in the Beijing 2008 Olympic Games Torch Relay theme song "Light the Passion, Share the Dream". He is also one of the candidates on vote for performer of the Beijing 2008 Olympic Games theme song. In the closing ceremony, he sang "Beijing Beijing, I Love Beijing" alongside Hong Kong singer Kelly Chen and Korean singer Rain.